Цубаки Маппутацу

Мико, a skilled swordswoman, was hired by a Yakuza boss to seek revenge against Mamoru. Initially, she believed her mission was just, but later discovered the truth about her employer and turned against him. Deciding to attend the same school as Mamoru, Miko's partner Tsubaki develops depression over feeling outdated, while Miko also begins to develop feelings for Kagemori.