Chihaya is a boy that is looked down because he looks like a girl. Due to that reasons, he isolates himself at home. His mom suggests that he should go to Seiou Academy which is an all girls school. Thus, the story started...

Mizuho can't believe his ears when Grandpa's will is read out. Grandpa's final wish is for Mizuho to attend the same academy as Mizuho's mother. The catch is it's an all-girls school. With the help of his friend Mariya however, he gets a makeover good enough to fool everyone at the academy.