Takumi, the protagonist, is constantly teased about his short height by his tall childhood friend Riko. She's so tall that people jokingly call her a “giant.” They’re always bickering, but secretly Takumi has feelings for her. When he hears a rumor that Riko has an older boyfriend, jealousy flares. On their way home together, he ends up making Riko cry in a park and, in the heat of the moment, confesses! It turns out Riko likes him too, and the two start dating—then things quickly get intimate right there in the park’s bushes…!?