Ichii's debut in MMA was on at Smackgirl 2006: Legend of Extreme Women, where she was defeated via unanimous decision by Emi Fujino. More than a year later, on her next match, Ichii defeated Yukiko Seki by TKO to win the Universal Kickboxing Federation Women's MMAIntercontinental Title on at Square Jungle's event Strong Soldiers' Conquest. At Deep 35 Impact on at Korakuen Hall, Ichii defeated Japanese female MMA star Satoko Shinashi via majority decision, becoming just the second woman to defeat Shinashi. On at Square Jungle's event Heisei Battle in the Square Jungle, Ichii defeated Megumi Watanabe by guillotine chokesubmission in 25 seconds. Debuting with MMA promotionJewels at Jewels 7th Ring on, Ichii was defeated by Mika Nagano via unanimous decision. At Jewels 8th Ring on, Ichii was defeated by Saori Ishioka via armbar submission in the second round. In her third straight loss, Ichii was defeated by South Korean kickboxer Seo Hee Ham via unanimous decision on at Jewels 9th Ring during the first round of the Jewels Lightweight Queen tournament. After her losing streak, Ichii rebounded with a unanimous decision victory over Miyo Yoshida during the 2010 Jewels -52 kg Rough Stone GP semi-finals at Jewels 10th Ring on. Ichii faced Hiroko Kitamura in the finals of the 2010 Jewels -52 kg Rough Stone GP at Jewels 11th Ring on. She was defeated by unanimous decision.
Kickboxing career
Ichii debuted in kickboxing on at Kakidamishi 8: Ryukyu Muay Thai Kingdom, Takeoff! where she was defeated by Sakurako via majority decision. Debuting in shoot boxing on at Shoot Boxing World Tournament 2008, Ichii was defeated by Fuka Kakimoto via extra round unanimous decision. On at the Martial ArtsJapan Kickboxing Federation event Break Through 8: Breach, Ichii fought to a majority draw against Mika Nagai. Ichii obtained her first victory in kickboxing by defeating Tomoko SP via unanimous decision on at M-1 Freshmans. On at Shoot BoxingWorld Tournament Girls S-cup 2010, Ichii defeated Sumie Yamada by majority decision in the tournament's reserve bout.
