Bio Planet WoO is a "Kyodai Hero" themed tokusatsu that premiered April 9, 2006 and aired at 7:30pm on NHK and ran for 13 episodes. WoO was one of many unused ideas created by Eiji Tsuburaya as story connecting to the showUltra Q. The story revolves around a living creature which came from a comet named WoO; in the series, WoO is befriended by a young girl named Ai; both are chased by a mysterious organization called SWORD who sees WoO as a threat to humanity. At the same time, giant monsters have invaded in search of WoO. The story itself follows the original script Tsuburaya intended for the show. In addition, a Manga series was published a year later which was loosely based on the series of the same name.
Main characters
WoO: The only survivor of his species wandered in space until he crashed on Earth. There, he befriended Ai and develops a strong bond with her that he'd protect her at any cost. He uses his antennae to connect to electronic devices to communicate with Ai.
Ai Kumasiro: Junior high school 2nd grade. She stays with her mother and loves soccer. She travels with WoO after their encounter. Her school is then attacked by a giant monster, which resulted in her being the lone survivor of the attack.
Kiyomi Kumasiro: Ai's mother and secondary chief editor at the magazine "CHEMISTRY."
Akita: A reporter of magazine "CHEMISTRY" of the same publisher as Kiyomi.
Kotaro: Ai's classmate. After he leaves working in the Convenient Store; his dream is to become a movie director. He seems to be attracted to Ai.
SWORD Organization
Yaman: The leader of SWORD. It reveals that his daughter was killed in the incident that Ai survived and because of that holds a personal vendetta against the alien life forms, including WoO.
Katsura: Field Researcher for SWORD, she eventually becomes an ally to Ai and WoO helping them escape from her colleagues.
Sakuraba: Field Agent of SWORD who keeps tabs on Ai and WoO.
Nagakura: Biological Researcher for SWORD. He uses WoO's artifact and turns into the monster Gelnoide in episodes 12 and 13.
Gonda: Katsura's sweetheart and ace combat specialist for SWORD's mobile unit. He is portrayed by Shigeki Kagemaru.
Waver: Head of SWORD's mobile unit and his part of SWORD's US branch in Arizona.
WoO's Forms
Egg Form: The shape WoO used to travel in space.
Inflated Form: An expanded version of normal form; WoO grows bigger than Ai, but still fights monsters in its normal form.
Fossil Form: WoO reverts to this form due to exhaustion fighting as a giant. It takes water to revive him into his normal form.
Rucksack Form: Due to WoO's shapeshifting abilities, he takes this form when traveling with Ai to disguise himself from public.
Aikichi Form: A fusion of WoO and Ai's energies resulting in WoO turning into a Giant to fight other daikaiju; after fighting he turns into his Fossil Form.
A year after the show ended its run a manga Shoujo series of the same name was published but compare to the TV show the manga features elements & traits that defers greatly from the show that the manga was loosely based on. Unlike the TV show the manga had a more lighthearted feel with a Slice of life style genre thus distant it from the more Kyodai Hero style series and because of this the manga solely focused on the main characters.
Songs
;Opening theme: "Guardian Angel" by Splash Candy ;Ending theme: "Kasa wa Hitotsu de Tariru no Kana…" by Girls On The Run