List of Sekirei characters


The Sekirei manga features an extensive cast of characters created by Sakurako Gokurakuin. The story centers on Minato Sahashi, a high school graduate trying to get into college, who becomes involved with [|Musubi], one of 108 Sekirei: super-powered humanoids with unique powers who must fight in a battle royal called the Sekirei Plan. He becomes her Ashikabi, a human with special genes that allow him to activate a Sekirei's powers through "winging", which can be a mouth-to-mouth kiss. Minato soon leads a team of Sekirei residing at [|Izumo Inn], a boarding house in the northern district of Shinto Teito, and must face opponents in the form of other Sekirei, many of whom have teamed with other Ashikabi and are spread throughout the other districts of Teito. Overseeing the Plan is a group called Mid Bio Informatics. New Sekirei and characters are also introduced in the media adaptations including the anime series and the video game series. Sekirei characters have had mixed reception among the Japanese and international anime communities.

Main characters

The protagonists are residents of, a boarding house in the northern sector of Teito built by [|Takehito Asama] and [|Kaoru Seo] or people/Sekirei closely connected with them. Miya Asama is the current owner and landlady.

Minato Sahashi

Minato Sahashi is a high school graduate who had failed the college entrance exams twice. Minato's known family consists of: his mother [|Takami], his grandmother and his younger sister [|Yukari]. After meeting Musubi at the start of the series, he becomes an Ashikabi. Over the course of the story, he "wings" several Sekirei and they share a residence in Izumo Inn where he has his own room. Originally he has a passive and somewhat cowardly personality, but over time, due to the kindness, trust and love of his Sekirei and his desire to protect them, he becomes more confident. He often places himself in danger to protect his Sekirei from harm and avoids situations that pose a high risk of danger to prevent his Sekirei from fighting needlessly. Although many of his Ashikabi peers consider these actions cowardly, Minato finds that these traits endear his Sekirei to him even more. It is later revealed that [|Hiroto Minaka], MBI's director and CEO, is Minato's father.
Minato has "winged" six Sekirei, each of whom physically reacted to him prior to winging, with the first five choosing him as their Ashikabi. Musubi, Kusano and Matsu were winged in the game's "First Stage", and Tsukiumi, Kazehana and Homura were winged in the "Second Stage", earning him recognition as the strongest Ashikabi in the northern part of the city. Because of this, he received the title "Northern Ashikabi", with few using his given name as a result of Minato being falsely described as an Ashikabi with a "shady" background. Many individuals think that Minato is somehow the key to foiling MBI's ultimate plans for the Sekirei. By the end of the Third Stage, Minato is seen with some advantages against the other remaining contestants as he is the only Ashikabi with two Jinki in his possession, one having been stolen by Matsu and the other won in battle, and for having winged the most single-numbered Sekirei, totaling four, while receiving guidance from Matsu and Miya. During the final stage, Minato is the Ashikabi representing them in the final match on Kouten to save all Sekirei and their Ashikabi. He and Musubi journey to Kouten to fight Miya for the prize; the rest of his Sekirei join their life-forces with Musubi, enabling Musubi to defeat Miya. After the final battle, Musubi becomes the new Guardian of Kouten and Minato must return without her. In the year that follows, Minato finally passes the entrance examination to the university, has a part-time job at MBI and is determined to learn as much about Sekirei as he can in order to "destroy this system binding these Sekirei and remove the leash on these girls." In Sekirei - 365 Days Without Her, he states his intention to finish college in possibly two years and one day "take over MBI". He continues to live at Izumo Inn with his other Sekirei, finally reuniting with Musubi. In Sekirei - 365 Days Without Her's epilogue, which takes place a few years after Musubi's return, he has become the new Director of "the New Sekirei Project" at MBI and is responsible for Takehito Asama's revival and reunion with Miya.

Musubi

Musubi is the main heroine of the series. She met Minato when she literally fell out of the sky onto him while being chased by Hikari and Hibiki. Musubi specializes in hand-to-hand combat which utilizes her greatly enhanced strength, enforced by the heavy combat gloves she always wears. Musubi's outfit consists of a short red skirt and upper clothing resembling the robe traditionally worn by mikos. She is quite naive, often saying things she doesn't understand and is the most "childish" of Minato's Sekirei, yet at times can be insightful. Musubi is the most "competitive" of Minato's Sekirei, often showing great eagerness to fight other Sekirei, but never fails to be polite, usually introducing herself and then asking for permission first before fighting them. Two running gags in the story are how her clothing always ends up in tatters, revealing her sexy curves after every fight, and how she seems unable to land on her feet after leaping from a great height but always crash-lands on top of Minato. After hearing Tsukiumi say that she is Minato's wife, she decides that she is his wife too. She eats a lot and is a fairly decent cook. Because Musubi eats so much food to maintain her energy level, Miya's nickname for Musubi is "Airheaded Glutton". During moments of extreme emotion, the image of a ferocious black bear appears behind her, causing some to refer to her as "The Bear". Musubi's known attacks are the Bear Fist and Bear Meteor and her Norito is "By the fists of my contract, shatter the perils of my Ashikabi!" After all the Ashikabi collapse on Kamikura Island, Musubi is chosen from among Minato's Sekirei to represent them in the final fight on Kouten against Miya in order to save all the Sekirei and their Ashikabi. After accomplishing this, she stays to becoming the new power of Kouten in order to restore all of the fallen Sekirei, but her "bear" side still emerges at moments of extreme jealousy whenever any of Minato's adult Sekirei get too close. She returns to Minato's side a year later.

Kusano

Kusano, commonly referred to as "Kuu-chan" or "Ku", is the youngest of Minato's Sekirei, and is also known as the "Green Girl" by other Sekirei due to her having the power to control plants, making them grow at an accelerated rate and to unnaturally large proportions, and typically using them to ensnare or disable her opponents without hurting them.. At the beginning of the story, she was hiding in a pinetum after being traumatized by Mikogami's attempting to forcibly wing her. Kusano communicated with Minato telepathically and led him through the garden until he found her. Kusano refers to Minato as Onii-chan, and is the most attached to him. She does not like fighting or quarreling and she can be seen stopping them when they start. She is also very impressionable and often copies Musubi, Tsukiumi and Kazehana's mannerisms. She is extremely determined to be Minato's wife when she grows up, and is highly possessive of him at times, even hissing at her fellow Sekirei when they start to get too close to him . Her Norito is: "By the life of my contract, awaken the stars of my Ashikabi!" In Sekirei: 365 Days Without Her, Matsu states that Kusano grows and ages at a slower rate than other Sekirei and estimates that "her life span will be twice that of a human."
At the Final Match of Stage Three on board the ship Minaka, she becomes good friends with Sanada's Sekirei Kujika, Kuzuri and Shijime and now she is considered their best friend.
Kusano's use of various plants is highly imaginative and extremely effective, but her MBI adjustments were never completed, which is why her powers rage out of control whenever she's sad or upset. She has a sibling-like relationship with #107 Shiina, despite the fact that his power is the natural opposite of hers. When Minato initially brought her to Izumo Inn, Miya, believing that he had kidnapped her, drew and pointed a sword at Minato's face ; however, Kusano's growling stomach and later falling asleep at the dinner table brought out her motherly instincts, and Miya insists that Kusano share her room to ensure that Minato doesn't do anything indecent with Kusano; however, Kusano often sneaks into Minato's room to share his futon with him and any of his other Sekirei who have done likewise. Her name literally means "A Grass Field", and Miya's nickname for Kusano is "Little Foster Daughter". In the epilogue of Sekirei and in Sekirei - 365 Days Without Her, it is shown that she has taken on a large share of the household duties in tandem with Tsukiumi in Miya's place. Kuu-chan dies.

Matsu

Matsu is a bespectacled Sekirei wearing a light peach dress that closely resembles a cheongsam. Matsu has the power to access and analyze any electronic device on a telepathic level, but does not have yet the power to control them. Matsu has genius-level computer and hacking skills, and utilizes a vast network of satellites and spying devices to gather large amounts of information, once even succeeding in hacking MBI's mainframe computer. Matsu refers to herself as the "Sekirei of Perceptiveness" and addresses everyone using the "-tan" suffix. However, in sharp contrast to her high intellect, Matsu is very perverted, often using her resources to peep on people and often tries to "experiment" with Minato, with most calling her the "Shameless" Sekirei or "the pervert" as a result. One of her favorite hobbies is watching the daily "soap opera" at Izumo Inn, i.e. the mayhem Minato and his other Sekirei cause every day. Matsu serves as Minato's strategist and tactician, using her vast network of information to aid him but rarely venturing outside of the Inn. Her name literally means "Pine" and Miya's nickname for her is "Perverted Four-Eyes".
Prior to the beginning of the story, Matsu was a member of the first Disciplinary Squad led by Miya. Later, she stole the #8 Jinki, leading her to live in a secret room at Izumo Inn to avoid being captured by MBI. Her Jinki was a prize for the winner of the second match of the Third Stage, and ended up in the hands of the Ashikabi of the East after the winner was attacked.

Tsukiumi

Tsukiumi is a Sekirei with a tsundere personality and a Western appearance who first appeared to Minato in a dream saying that she would kill him. She is statuesque and blonde, wearing a black and white dress and brown boots over black thigh-high stockings with brown garters. Tsukiumi's initial resentment is a result of her desire to be the strongest without the need to be winged by an Ashikabi. She was originally under the false belief that "winging" means having sex with an Ashikabi; this misunderstanding is cleared up after the two finally meet and she decides to become his Sekirei.. Her unusual views on this subject are explained in Sekirei: 365 Days Without Her, when she tells Minato that she was traumatized after nearly being sexually molested after running away from her modifier [|Professor Miyajima] when she was a child. The most aggressive of Minato's Sekirei, she refers to herself as Minato's "true wife" and is very possessive of him; she is also very quick to nearly drown Minato over trifling matters. Tsukiumi has a very short temper and rarely smiles; she does, however, have an honorable side, and is a strong adherent to the fundamental rule that Sekirei combat is one-on-one. She also goes to great lengths to prevent innocent civilians or bystanders from getting caught up in Sekirei fights. Tsukiumi's speech differs from the other Sekirei in Minato's party, as she speaks old-style Japanese; this was mirrored in the English dub of the anime by having her speak Shakespearian English. Minato's feelings for her are quite complex: he tells her at one point that to him she is "so beautiful, so strong, so stylish... thought that you were too good for someone pathetic like me" and that he's "working hard to become an Ashikabi...a person worthy of you".
In the beginning of the series, Tsukiumi has a one-sided rivalry with Homura stemming from her defeat by him when they first met. Homura always refuses a rematch, saying that she should concentrate on finding her Ashikabi. Since being winged by Minato, Tsukiumi looks forward to a rematch with Homura. Tsukiumi once confided to Miya that she still wants to be the strongest, but now it's so she can be with Minato forever. After Musubi's ascension to Kouten and Miya's physical collapse, she takes over most of the household duties at Izumo Inn under the title of "bride training".
Tsukiumi has the ability to control and manipulate water, as well as the ability to gather large quantities of water out of the air. Her name literally means "Moon Sea", and Miya's nickname for Tsukiumi is "Faucet with Legs". Her known attacks are Yamata no Orochi, Water Arrow, Hydra Blast, Water Blade, Water Celebration, Water Dragon, and Steam Dragon. Her Norito is "By the waters of my contract, purify the ills of my Ashikabi!"

Kazehana

Kazehana is a tall, dark-haired and extremely buxom Sekirei and wears an extremely tight-fitting and revealing purple dress with a hemline that ends just below the tops of her thighs. Her first encounter with Minato was to stumble into his room and bed in a drunken stupor. She takes an immediate interest in Minato, surmising that he could be Hiroto Minaka's son because Minato possesses the same hand shape and cheek bones, but keeps this belief to herself. Despite experiencing physical reactions to Minato, Kazehana initially keeps her distance, hoping that Minato will display some "manliness". After witnessing Minato's concern and love for his Sekirei, Kazehana chooses him as her Ashikabi.
Kazehana displays an extremely relaxed personality, preferring to spend most of her time lounging and drinking sake, and often becomes giddy when discussing matters of love. However, when she becomes serious she displays a lot of power and lets nobody talk down to her. Kazehana knew Uzume's secret, and while she didn't condone Uzume's actions, she understood Uzume's motivations. Along with Matsu, Kazehana was a member of the First Disciplinary Squad. Prior to meeting Minato, she had an unrequited love for Minaka, but was rejected because he loved someone else. Her relationship with Miya is complex, and she falls into a serious depression after Miya's collapse, which is lightened when Minato promises her that he will find a way to reunite Miya and Takehito.
Kazehana has the ability to control and manipulate wind, which also grants her a limited ability of flight; her name literally means "Wind Flower". Her Jinki was a prize for the winner of the third match of the Third Stage and ended up in Minato's hands. Her known attacks are Flower Whirlwind, Flower Dance, Flower Feast, Long Sword of Wind, and Cherry Flower, and her Norito is "By the wind of the contract, blow away the dark clouds of my Ashikabi!"

Homura

Homura was the self-titled "Sekirei Guardian" who protected unwinged Sekirei during the first two stages, usually from Hikari and Hibiki. Prior to being winged, Homura's power and gender were unstable. Even after his body started becoming female, Homura continued to think and act as a man.
For a long time, Homura lived under the alias Kagari and worked as a host club entertainer in an effort to find a "female Ashikabi" and few knew his real identity. Homura began reacting to Minato just before Kazehana became his fifth Sekirei, but it became more obvious afterward. This caused Homura a great deal of stress over his potential Ashikabi being a male. At the end of the Second Stage, it was revealed that he was the last unwinged Sekirei. Homura left the Inn to kill Minaka in order to bring an end to the Sekirei Plan; however, before he could reach the MBI Tower he was attacked by multiple Sekirei attempting to capture him. Refusing to be a trophy in Minaka's "Game", Homura attempted to commit suicide through self-immolation just before Minato and his Sekirei arrived. Refusing to let Homura sacrifice himself, Minato winged him, saving his life and causing his power to finally stabilize. As a result, Minato received the power to determine Homura's gender and mentality, but chose to let Homura remain who he is and what he wanted to be, earning Homura's respect. After the final battle, Homura, due to his/her hermaphroditic body, is no longer a "host", and is instead a part-time bartender at a small bar ; he is also once again the Sekirei Guardian, but is at peace with himself to the point where he is finally able to tell Minato that he really is Homura's chosen Ashikabi.
Homura has the ability to control and manipulate fire and has a habit of smoking when anxious. He is quite powerful, as Tsukiumi speculates him to be the strongest unwinged Sekirei prior to being winged by Minato. His name literally means "flame", referring to his element, and his known attacks are Fire Dragon, Steam Dragon, Sword of Flame, Fire Snake, and Fire Wall. His Norito is "By the flames of my contract, incinerate the karma of my Ashikabi!"

Miya Asama

Miya Asama is the landlady of Izumo Inn and the eldest Sekirei. Takehito, her husband, worked at MBI as one of the chief researchers, but was killed. She also stated that she left MBI due to the events that caused his death. She states she never refuses anyone needing shelter; however, she prohibits fighting and obscenity in her house, although she passively does eavesdropping using a rubber duck speaker with glasses and a #2 on its forehead that she refers to as "Duck-san". Currently, only Kusano, Matsu, Kazehana and Homura know of Duck-san, but they have all been "warned" by her not to tell the others of it. She trains both Musubi and Tsukiumi to help them win Sekirei battles. Whenever she becomes angry, annoyed, if any person breaks the house rules or when she is making threats, a demonic visage appears behind her, frightening enough to scare even Homura and Tsukiumi into submission; it is possible that she learned this technique from seeing Takehito doing it first, which made her smile at for the first time. She is the only Sekirei who was never winged because Takehito, the man she loved, wasn't an Ashikabi. It is shown in a flashback that Seo interrupted her just before she was about to kiss Takehito while he was napping, and possibly had interrupted at other times too which would explain why she despises him. However, because he was Takehito's friend and had taught her household skills, she tolerates him and allows him to visit, eat free meals and sponge off supplies. Minaka hasn't tried to get her winged due to honoring a last request by Takehito.
It is strongly implied that Miya is the strongest Sekirei, even referred to by #4 Karasuba as "another dimension". Miya was the leader of the First Disciplinary Squad and displayed the power to sink several large warships. She is a swordswoman of unrivaled skill, with the ability to produce powerful directed shock waves with a swing of her sword. Due to her fearsome reputation, which has earned her the title "Northern Hannya", no Ashikabi or Sekirei has dared to attack Izumo Inn. She firmly conceals her true identity and past from others, with only members of the First Disciplinary Squad and Homura knowing the truth before she shares her secret with Minato. When Minato originally asked about Sekirei #01, Miya cryptically responded by saying that "she" died along with Takehito. Her Jinki was a prize for the winner of the first match of the Third Stage and it is currently in the hands of the Southern Ashikabi. During the last stage, Miya reappears at the top of Kouten as the final opponent of the Sekirei Fight, claiming that the winners of the Last Stage, i.e. Minato and Musubi, can only obtain the prize by proving themselves in combat and defeating her. She is defeated by Musubi and replaced by Musubi as the Guardian of Kouten. She returns to Izumo Inn, but because of the severing of her long-term connection with Kouten she is an invalid and still unwinged; however, her old personality is temporarily re-asserted by a burst of energy from Kouten to prevent a violent quarrel over Minato between Musubi and Kazehana. Minato hopes that one day he will be able to revive Takehito so that Miya can be reunited with her "true" Ashikabi... a dream he achieves a few years after Musubi's return, and Miya and Takehito are tearfully reunited.

Uzume

Uzume is a Sekirei originally living at Izumo Inn when Minato and Musubi first arrived. Uzume's Ashikabi is Chiho Hidaka . Uzume shows deep love towards Chiho, which is entirely reciprocated. After Minato and Musubi moved into Izumo Inn, Musubi shared the same bath with her, with Uzume seeing Musubi's Sekirei crest and revealing to her that she is also a Sekirei. This turned out to be a bad move, since Musubi was taught to immediately challenge another Sekirei as soon as she encounters one, and resulted in Musubi attacking first before Uzume managed to escape and find Minato; the "fight" was eventually broken up by Miya. Uzume has a large collection of costumes at the Inn, which she made herself and wore to entertain Chiho. Higa, who is using Chiho's medical treatment as leverage for Uzume's cooperation, blackmails her into using her powers to eliminate other Sekirei. She develops a friendly rivalry with Kazehana, whom Uzume refers to as "Nee-san".
Near the end of the Second Stage, Uzume leaves Izumo Inn, realizing she can no longer be friends with Minato's group. She unwillingly fights Minato and his Sekirei in the hunt for Sekirei #06 and when she is forced to try and steal Minato's Jinki after the 3rd match in Phase Three she is visibly upset. She visits Chiho a few times after she leaves Izumo Inn, in tears because she is being forced to fight her friends. She is with Higa's Sekirei when they attack Izumo Inn in a second attempt to steal Minato's Jinki, but deserts her erst-while "comrades" after she learns of Minato's Sekirei's successful "rescue" of Chiho, and sacrifices herself in order to save Minato, getting stabbed in the back by Sekirei #31 and eventually dying in Minato's arms; similarly in the anime, she sacrifices herself to save Musubi. In both the manga and anime, before her termination is complete she begs Minato to look after and protect Chiho, and Minato tearfully promises to do so. Her termination devastates Minato and his Sekirei but also motivates Minato to win the Sekirei Plan in order to restore her to life. Uzume's spirit appears idly sitting on Izumo Inn's rooftop when Minato is temporarily "terminated" during the Kamikura Island battle and tells him he is not supposed to be there yet, questioning why Minato's Sekirei are letting their Ashikabi be in such a place. She also tells him that he can only bring one Sekirei to the final battle at Kouten. A year after the final battle, she is restored along with all of the other fallen Sekirei, but because of the long period of time she spent "terminated" she awakens without her memories. Minato's plan is to reunite Uzume with Chiho, but Uzume prematurely sneaks out of the MBI facility and makes her own way to Izumo Inn, where she and Chiho are joyfully reunited and continue to happily live together.
Uzume fights using a costume composed of long strips of cloth, which also serves to hide her face and identity, earning her the nickname "The Veiled Sekirei". She is very swift in terms of fighting, being able to dodge continuous attacks from the likes of Musubi along with the other Sekirei she bested on Higa's orders. Uzume primarily uses her veil to increase the range of her attacks, giving her a tremendous advantage over many melee-type fighters, but is fairly useless against Sekirei with abilities of elemental manipulation like Kazehana and Tsukiumi. Her known attack is Shawl Lance and her Norito is "By the veil of my contract, destroy the nightmare of my Ashikabi!"

Chiho Hidaka

;Chiho Hidaka
A young girl staying at the Hiyamakai Hospital owned by Izumi Higa, who is suffering from an aggressive virus which she has apparently suffered from since early childhood or even birth and which will eventually kill her if it continues to spread. Her disease crippled her to the point where she had had to be confined to bed, but on occasion she is allowed to move about in a wheelchair, and the medication that she takes merely prevents the spreading of the virus but doesn't heal her; this fact is used as leverage against Uzume by Higa, who continually threatens to discontinue Chiho's treatment if Uzume does not obey him.
Chiho is an orphan, her parents having been killed in an accident when she was very young, and she does not appear to have any close family. Her condition rendered her suicidal until she met Uzume, who encouraged her to continue living. In the manga, she met Uzume after illicitly sneaking out of her hospital room to watch the birds in a field next to the hospital, and initially mistook Uzume, who was newly on the run from MBI and hiding in the branches of a large tree, for a "pretty bird". After their initial conversation, during which Uzume became aware that her crest was reacting to Chiho, they met several more times, becoming each time more emotionally connected, until Uzume finally asked Chiho to bond with her and Chiho joyfully agreed and became her Ashikabi. In the anime, Chiho mistakenly thought Uzume was about to commit suicide by jumping off the hospital roof and tried to stop her, causing them both to fall; Uzume saved them both, but realized that Chiho was her destined Ashikabi and allowed Chiho to "wing" her. Chiho shows deep love towards Uzume and admits this openly, with her feelings being entirely reciprocated; she deeply cares for Uzume and admits this openly, revealing that she has romantic feelings for Uzume, but feels ashamed that due to her illness she can't do anything as an Ashikabi for Uzume.
Chiho had no idea that she was being used by Higa to force Uzume to work for him, and Uzume deliberately kept the truth hidden from her in order to protect her, stating multiple times that Chiho didn't need to know. However, Matsu uncovered the truth and Chiho's identity, and Minato and his Sekirei began a secret operation to rescue Chiho and free Uzume from Higa's control. Once she understood, Chiho willingly allowed herself to be transported to an MBI medical facility, where she remained until MBI was able to eventually completely cure her. Unfortunately, during the rescue operation, Uzume was terminated and Chiho, although far away, was aware of it, feeling and grieving at Uzume's termination.
Minato's plan was to reunite Chiho with Uzume by bringing her to live at Izumo Inn after her complete cure ; a year after the Final Battle, she was released from the facility and the revived Uzume prematurely sneaked out of the same facility on the same day, and both made their own way to Izumo Inn where they were joyfully reunited and continue to happily live together. In Sekirei - 365 Days Without Her, it is suggested that she is talented at confectionery cooking and hopes to one day become a pâtissière.

Yukari Sahashi

Yukari is Minato's younger sister and a college student who is enrolled in Shinto Women's University. Yukari has a very strong and confident personality unlike her older brother, and came to Tokyo to attend university and be closer to her mother and brother. She has a strong interest in handsome men, especially bishōnen; this interest, however, is mostly a result of her hidden feelings for Minato, whom she cares for deeply. There are quite a few times when she displays an extremely perverted nature. She is Shiina's Ashikabi and is helping him search for Kusano. Her forceful reputation and merciless attack style as well as a penchant for displaying a demonic facial visage have earned her the title of "Demon Ashikabi". Together she and Shiina are known as the "most evil" pair and are the second-most feared after "the Northern Hannya", carrying a bounty of 1,000,000 Yen from a vengeful Ashikabi whose Sekirei had fought them and lost. Yukari was later taken prisoner by Izumi Higa in order to use Shiina's power for himself. Originally unaware of what Shiina was being made to do in her absence, she later escaped Higa's clutches by starting a fire in the room where she was being held and jumping through a smashed-open window before being rescued by Shiina, at which time she confessed her true feelings for him. During the final match of Stage Three, Yukari discovers that Minato is also an Ashikabi and "the Northern Ashikabi", and that Kusano is his Sekirei ; curiously, she once wished for such a pairing to occur. With the third stage ended, Yukari leaves the city with Shiina to evade the Disciplinary Squad, who by that time have been ordered to terminate all Sekirei not qualified for the final stage, but she and Shiina return in Chapter 163 to defend the MBI headquarters from invasion by armed troops.

Shina

Shina is Yukari's Sekirei. He is originally searching for Kusano, with whom he has a very close, sibling-like relationship, despite the fact that his power is the natural opposite of hers. His power, while not officially named, allows him to emit an energy wave that instantly disintegrates most forms of matter, including metal, wood, fabric, and even human flesh to a limited degree. He met Yukari after he was attacked by Mikogami's Sekirei and was saved by her with assistance from Homura; later, he was finally "winged" by Yukari when Mikogami tried to force him to emerge. He shudders at the idea of almost being Mikogami's Sekirei and thinks of Yukari as a bright shining light in his life. Like Kusano, Shiina dislikes violence and has expressed extreme remorse for hurting Sekirei he has defeated. Due to the overwhelming power of his ability, he is called the "Death God Sekirei", and he and Yukari they are ironically considered to be the "most evil pair" in the city. Shiina and Yukari's reputation and power have become so fearsome that they attract the attention of Izumi Higa, who encountered them shortly after they arrived in the North attempting to find the last unwinged Sekirei, hoping it would turn out to be Kusano, but was later revealed to be Kagari/Homura. Higa captured them and tried to coerce Shiina into working for him by making Shiina believe that Yukari loved Higa and not him, but they both escaped. His only known attack is World's End Garden and his Norito is "By the corpse of my contract, rot away the cross of my Ashikabi." His name means "Chinquapin Greens", sharing the same plant motif with Kusano. He and Kusano finally are reunited aboard the ship Minato during the Third Stage battle for the jinki, and he and Yukari decide to quit the Sekirei Plan and escape. In the course of his relationship with Yukari, he becomes less retiring and more of an equal with her, in effect becoming, in her view, "cool".

Mid Bio Informatics

Mid Bio Informatics is a powerful conglomerate founded by Hiroto Minaka, with their headquarters in Teito Tower.

Hiroto Minaka

Hiroto Minaka is the eccentric chairman and founder of MBI, with his motto being: "Fight & fight until one is left". He, along with Takami, discovered the Sekirei and because of this, he feels that this entitles him to be the "Game Master" of the Sekirei Plan. Takami states that he has always been thought of as a "super genius", but her own view is that he is insane, and his actions throughout the story seem to support this. It is hinted by Seo that he might have had something to do with Takehito's death, or at the very least did nothing to prevent it. In chapter 100 of the manga, it is revealed that Minaka is the illegitimate father of Minato, but only because Takami refuses to allow him into her family. In the final stage, Hiroto is revealed to be an Ashikabi too, using his powers to fill the quota of Ashikabi needed to activate the Jinki before all the others die, by taking Minato's second Jinki with him. However, he apparently has not winged any Sekirei. During the final battle, he is aboard the Sekirei Ark when he is knocked unconscious; he is utterly disconsolate when he wakes up and finds out that the game has finished without his having seen it, and he remains in total seclusion and completely incommunicado aboard the ship on Kamikura Island for an entire year, leaving Takami totally in charge of MBI operations. In the final chapter, he finally snaps out of his funk, completely repairs the Ark's systems and pilots the ship to Kouten, where he is able to release Musubi so she can return to Minato. A few years later, he works with Minato to revive Takehito.

Takami Sahashi

Takami Sahashi is the mother of Minato and Yukari, MBI's head researcher, and the person in charge of the Sekirei Plan. Before the beginning of the series, Takami, along with Hiroto, discovers the Sekirei Ark and later gives birth to Minato and Yukari out of wedlock with Minaka due to her refusal to allow Minaka to be part of their family. She later reveals that she lied about working at a pharmaceutical company to Minato when she takes him in temporary custody after the escape plan. Whenever she is angry or making jokes, she makes a demonic facial visage, a trait that is shared with Yukari. She is also the modifier of Homura, Musubi, Shiina and Kusano, possibly out of shame as she frequently expresses doubt and disgust at Hiroto for what he is doing. She has a long scar over her left eye, received from Yomi while trying to protect Kusano. Her relationship with her children is somewhat unclear, as Minoto says that when he and Yukari were younger Takami was always busy at her job and never around much, and she frequently gives him "tough love" most of the time, such as cutting down his allowance when he is moving from his old apartment and lecturing him over the phone, but there seems no doubt that she does care deeply for her children and it is possible that she has always seen great potential in Minato, as when after Kusano's emergence she told Homura that she knew more about Kusano's Ashikabi than anyone else and her acceptance of Minato's decision to learn everything about Sekirei so that he can one day free them all, although she warns him to never become like Minaka.

Takehito Asama

Takehito Asama is Miya's late husband who was friends with Seo. An MBI researcher, he was the discoverer of the winging system, the Norito, and the existence of the Ashikabi. Together with Takami, he was the adjuster of the First Disciplinary Squad, consisting of Miya, Matsu, Kazehana, Karasuba and Mutsu. He once confessed to Homura that he believed an Ashikabi's power is the power of fate. He was against Hiroto's idea of the Sekirei Plan. He also designed Izumo Inn, which Seo helped him build. It is implied by Miya that his death may have something to do with her leaving MBI. Takehito was the first to use a "Demonic Visage" while talking to Seo over the phone, which made Miya smile for the first time.
In the manga, it was revealed that Takehito died sacrificing himself to protect all the Sekirei from a failed experiment of the Jinki. Because Karasuba was the one who convinced Takehito to sacrifice himself, Miya blamed Takehito's death partially on Karasuba and nearly killed her, thus creating the tension between the two Sekirei. He remained in the MBI laboratory in a state of suspended animation, and Minato hopes that he will one day be able to revive Takehito so he can be reunited with Miya, which, with Minaka's assistance, he accomplishes a few years after Musubi's return.

Natsuo Ichinomiya

Natsuo Ichinomiya is the Ashikabi of all three members of the third Disciplinary Squad and works as a clerk in MBI's pharmaceutical department. During the start of the escape plan, he was expecting something exciting; Karasuba stated he's never been wrong with his intuitions. During the Third Battle of Phase Three, He explains to Minato why it is forbidden for Sekirei to attack an Ashikabi and what will happen if an Ashikabi dies ; he then tells Minato that if he were to be killed, it would eliminate the whole Disciplinary Squad. Natsuo appears to be a carefree person, and even his Sekirei say so, but this appears to be a front, as he had been considering suicide after his lover, a doctor, had volunteered to serve in a war zone and was killed. He changed his mind after meeting Karasuba and agreeing to become her Ashikabi, sensing that she shared the same internal emptiness as himself. After the third stage is completed, Minaka presents the last remaining Jinki to him for his services in enforcing the Sekirei Plan, thus qualifying him and his Sekirei for the fourth and final stage. During the final battle on Kamikura Island, thanks to the devotion of Benitsubasa and Haihane, he realizes that he is not so empty as he had thought and tries to make Karasuba realize this, but she rejects him and deliberately severs her connection with him. As of the events of the epilogue of Sekirei - 365 Days Without Her, he has found peace with himself and hopes that Karasuba will allow herself to eventually be revived.

Professor Miyajima

Professor Miyajima, Tsukiumi's modifier, is the special advisor to MBI and, according to all accounts, is more of a mad scientist than Minaka. Tsukiumi came to live with her as a small child after a foiled kidnap attempt from MBI and refers to her as "baa-san", although in softer moments she calls her "Granny". She, like Miya and Takehito, can make a demonic facial visage and was extremely strict, making Tsukiumi tremble with fear every day, but although strict she cared deeply about her "precious tomboy" and continues to do so. She is very young-looking despite her age, the result of MBI's technology. She made her first appearance in a flashback to Tsukiumi's childhood in the Special Chapter of Volume 9, in which Minato and his Sekirei asked Tsukiumi about her. It was originally hinted that she was Minato's grandmother due to her personality and age, but never verified and finally disproved in Sekirei - 365 Days Without Her when she invited Minato and Tsukiumi to visit her.

Disciplinary Squad

The Disciplinary Squad is an elite group of Sekirei in charge of preventing any Sekirei or Ashikabi from withdrawing or escaping from the Sekirei Plan. The First Disciplinary Squad, known as the "S-Plan Guardians", was initially formed by the MBI from the first five awoken Sekirei to protect the Sekirei that had yet to mature and awaken from enemy forces. Miya was the group's leader, with Matsu, Kazehana, Karasuba, and Mutsu following her. After its break-up, the Second Disciplinary Squad was formed with Yume as the leader and Karasuba, with the same goals. After Yume's death, the Third Disciplinary Squad, consisting of Karasuba, Haihane and Benitsubasa and headed by Natsuo, was formed. After Karasuba's defeat on Kamikura Island by Musubi and her self-imposed coma, Benitsubasa and Haihane were joined, at Minato's recommendation, by #87 Kaho and her Ashikabi Oosumi.

Current members

;Karasuba
;Haihane
;Benitsubasa

Former members

;Yume

South

Hayato Mikogami

Hayato Mikogami is a 15-year-old Ashikabi controlling the southern part of the city. He has been shown to have no tolerance for failure and is one of the more complex characters, with his personality being fairly different with each of his appearances. In his first appearance, he seemed to be very cruel, only caring about "winging" Kusano and calling Yomi useless, whereas in his second appearance he seemed easygoing and carefree. Like Tsukiumi, Mikogami also strongly follows the rules for the Sekirei Plan. He appeared with his Sekireis and chased off Uzume when she attempted to take the Jinki Minato won in the third match of the Third Stage. He made no attempt to take it from Minato either, stating that he will take it in a fair match. He seems to be a collector of rare items, like getting rare-ability Sekirei and getting all excited when the Jinki were called extremely valuable. He also shows that while he likes collecting Sekirei, he hates losing them, as when they are terminated they leave him, making him lonely, claiming that having Sekirei by his side is far more interesting than other humans. To that purpose, he states that his wish is to bring back #43 and #38, and make all the terminated Sekirei his.

Southern Sekirei

;Mutsu
;Akitsu
;Himeko
;Mitsuha
;Mitsuki
;Taki
;Yomi
;Juuza
;Momo

East

Izumi Higa

Kakikazi

Eastern Sekirei

;Kochou
Higa's Sekirei include:

Nishi Sanada

Nishi Sanada is the Ashikabi controlling the western part of the city. His first name literally means "West" and it is his real name, not a nickname. Despite his rough appearance, he is shown to be overly emotional and protective around his Sekirei almost to the point of embarrassment. His appearance and personality are similar to that of Seo's and their similarities resulted in them getting into a comical fist fight during the first match of the Third Stage, after which they gained some respect for each other. He manages to secure one Jinki during the final match of the Third Stage, thus qualifying him and his Sekirei for the Final Stage. He rides a motorcycle. He's also nineteen years old, according to Mikogami's sources - the same age as Minato.

Western Sekirei

;Kujika
;Kuzuri
;Shijime
During the Fourth Match of Stage Three on board the ship Minaka, Kujika, Kuzuri and Shijime become good friends with Kusano and now consider her their best friend.
;Chiyo
;Yuna
;Hatae

Other characters

; and
; and Kuno
;Kaho
;Narashino
;Saki
;Yashima
;Natsu
;Ikki
;Namiji
;Nanaha

Video game characters

;Kuruse
;Yahan
;Aka-chan

Works cited