幼なじみが強敵です。

Mako starts high school and ends up in the same class as Tsukasa, the childhood friend she has not spent much time with lately. She is glad they can talk again, but his casual words and actions keep throwing her off balance. What felt familiar quickly turns tense and exciting in ways she did not expect. Their days at school become filled with teasing, mixed signals, and growing awareness. The setup centers on two longtime friends whose ordinary routine starts to feel very different.