Kokoro Katayama, a high school student, spends days unfamiliar with the class. She wears makeup every day to give her confidence, but her face seems to be scared by her classmates.

One day, when she picks up her younger brother Shinta, she meets her classmate Kuroki. They talked for the first time, but the distance gradually shortened and their feelings changed little by little.

This is a healthy youth love story.