During the school excursion, his friend casually asked a question that made Kaizu Takumi suddenly aware of his attraction to girls. Around him were several females—his childhood friend Hatano Konami, classmate Ebizuka Shino, and the popular school idol Shimazu Kakana—but he had never truly noticed his own feelings until that instant. Seeing his friend actively search for a girlfriend made him uneasy, and he decided to resolve the matter by finding someone before the end of his senior year. He realized this was he had considered such feelings, summer, he felt a need to act.