Yui's friend Tomomi is deceived by a criminal gang and suffers a humiliating fate. Driven by this tragedy, Yui ignites her sense of justice and vows revenge. She resolves to torture the gang's massive leader as punishment. However, her actions are discovered by boss Kinjo, who turns the tables and captures her instead. Endless torture begins, placing immense strain on Yui's mind. Can she maintain her sanity? A fierce battle between male pride and female pride is about to unfold. The sexual warfare begins now!