Tokiwa Sendai is an ordinary high school student who started commuting by train this spring. However, on the day of the entrance ceremony, he accidentally bumped into a pe*vert on the train and knocked him down. Sendai left the scene, partly because it was just a coincidence, but rumors spread on their own, and it became a story that a brave high school student had solved the case on his own. Unable to come forward, Sendai decides to pretend he doesn’t know anything, but from that day on, he realizes that someone has feelings for him. He receives love letters, lovely lunch boxes, etc., and although he is suspicious, he goes about his daily life not knowing who they are. Then one day, he begins to wonder about one woman. Hiyori Shion. She is a senior at school and is rumored to be the most beautiful girl in the school, but she is also a cold girl who no one can get close to. And gradually they start to have contact with each other, but at that time she is already…….