It's Yasaka Private High School's 42nd Cultural Festival, and everyone's having fun with all the events and activities around the school. Aki's class 3-A comes up with an unique "Rental Boyfriend" service that caught eyes of many customers, boys and girls alike, and the rental boyfriend just happens to be Makabe Masamune, who's forced to play along to atone for a great crime he's committed...

(Source: MU)