"Otomo Kotobuki" is a bad boy who keeps to himself, and "Tsuchiya Mao" is going to film Kotobuki in the film club. The "promise" made by the two roommates turns out to be a sweet bond that binds them. "Kikuchihara Jin" is the president of the film club and a popular guy, and his junior "Ichikawa Giichi" is competitive with Jin. The two clash with each other, but are gradually attracted to each other.