Lili is a serious high school girl who loves to study, and Miku is a hot and slutty high school girl. The two girls are completely opposites in terms of personality and hobbies, but due to some strange circumstances, their bodies end up swapped, and things get complicated! Lili ends up having sex with Miku's flirty boyfriend! Miku, who has Lili's body, can do whatever she wants at school! And in the end, they end up in a huge orgy in the classroom...