Hinako Nakayama is an orphan and a martial arts expert, who was living her life in a fuzzy haze when she finds herself attending a new school. Unfortunately for her, this is an all-boys school where she must assume a new identity!

Hinako is now cross-dressing in order to attend the extremely roughneck Shishiku Academy as Hikaru Onigashima. How exactly did she get into this mess?

Hinako reaches the next hurdle in her quest to take over Shishiku Academy: Takayuki Konparu. The only problem? The steely first-year has no interest in fighting her!

Konparu has sent a letter of challenge to Hinako and is now out for her blood. Why is he suddenly ready to fight her? And can Hinako win the fight when she learns the truth?

With her control over the first-years secured Konparu and Totomaru head to Hinako's house for a study session to prepare for mid-terms.

One of the two top second-years, Yuta Mirako, is both an idol and a brawler. An upcoming concert at Shishiku Academy brings him into conflict with Hinako.