Although Hino-kun has a delinquent reputation, he is actually a compassionate high school student who cares for his nephew. Despite this, he is also quite striking to behold. Recognizing Mizusawa-kun's prowess in confectionary, Hino-kun asks him to consider marrying his older sister for the sake of his fatherless nephew. Much to his surprise, Mizusawa-kun turns the tables with a proposal of his own: "I want to marry you."