Yamato insists that he and Mei should behave like a couple. Later, they go bowling with Muto and Aiko, who has feelings for Yamato. Out of jealousy, Aiko reveals a shocking piece of information about Mei.
Quiet and unassuming Mei Tachibana has spent her high school years without making friends or getting a boyfriend because of a childhood incident that left her believing that people will betray each other sooner or later. When she encounters a popular boy named Yamato Kurosawa, he becomes interested in her, and it is through their tentative friendship and blossoming relationship that Mei ultimately begins to branch out and befriend others.