On the verge of graduation, Riku Ichikawa is suddenly called out by a quiet, unnoticed guy from class. Despite never having spoken to him before, he confesses his feelings. She expects to turn him down like anyone would, but he earnestly explains each reason, passionately listing the things he loves about her. Surprised by his sincerity, she jokingly blurts out, "You've even jerked off to me, right?" He responds with a mix of shock and laughter. Unexpectedly, that flippant remark stirs something inside her. His determined effort isn't unattractive. She starts feeling it'd be a waste to just graduate and leave without another word. But why does he keep crossing her mind like this? Just because she played along once, why is she so drawn to him now...?