When I, a Loner, Happened to Be on the Same Train as the Class Idol, a Secret Relationship Began

Yota Sasagaki is an outcast who avoids interacting with his classmates. He skips the class social gathering and takes the train home alone, where he meets Hinako Ishikawa, the class idol. Hinako says she didn’t want to attend the gathering either and is heading home. The next day, Hinako tells her classmates that she couldn’t attend because of family matters. Did she lie?

That same evening, Sasagaki encounters Hinako again. There, Hinako reveals her true self. Upon learning this, Sasagaki enters into a secret relationship with her, and they grow closer.