Shuuichi Hayasaka has been living a normal life until one day his roommate Masamune Yasuda wakes up as a girl. Although Hayasaka feels uncomfortable about now sharing a room with Yasuda as a girl, Yasuda is fine being a girl as long as he can sleep most of the time.

First day of junior high school life, she met her first love.

Vowing to hide that feeling that she has in her heart, Shiratori Tsubasa became friends with Kotooka Mikage and Washio Nadeshiko. But what happens when she finds her crush leaning in over another girl?

A painful swing between friendship and love, so begins this pure heart love story.