Tsubasa Tsubame, a clumsy and shy girl, transfers into Ibuki and Yoichi's class. When Yoichi comments on her cuteness, Ibuki quickly beats him. It is revealed that Tsubasa once lived in the mountains, without any luxury, to learn martial arts with her subordinate Angela Takatsukasa. After school, Angela strips Tsubasa's clothes off in front of Ibuki and Yoichi to transform Tsubasa into a skilled martial artist...