Takashi is a two-timing jerk who used poor Tomoko for sex, and now that his girlfriend's back, he's ditching her! Upset, Tomoko asks for one final kiss before they part ways, and as Takashi obliged her request, he suddenly faints. He's shocked when he wakes up and discovers that he's now in the body of Tomoko! Refusing to give up her new host, Takashi is going to have to learn what it's like to be a pent-up, lusty, hormonal high school girl!