The "Festival of Hope" is approaching, an event where every student of Hope's Peak Academy can showcase themselves. Setsuka and her classmates are busy preparing for the festival, yet, as it turns out, she is the only one without a boyfriend to go there with. The girl lies, claiming she's not actually single. Her best friend, Hibiki, doesn't believe her, so they decide to make a bet where Setsuka must bring her "boyfriend" to the festival. And so, the story begins.