Michiro has dated many girls, but none of his relationships ever felt meaningful. After he breaks up with Makuri, she becomes furious and curses him — turning him into a girl for ten months. To break the curse, Michiro must build a genuine relationship and learn what true love really is.
As he adjusts to life as a girl, he slowly grows closer to Kanguro, a boy he once disliked. Together with their friends, they experience emotional challenges, personal growth, and many meaningful adventures.