Jirou had a nice life at UA High, in the top class and she had finally gotten together with her... interesting crush, Katsuki Bakugou. Although he was short-tempered and never got along with anyone, Jirou was one of very few exceptions for him. They dated for quite a while until Jirou had to go home for a night because of family reasons. Bakugou accused her of cheating on him, and they broke up in a heated argument. Jirou returned to her dorm, and in school the next day, her friend Kaminari questioned as to why she looked sad. She told him nothing, but Kaminari refused to see her like this. He took her out the the funnest of places where they slowly realize that they are falling for each other.