Chuugakusei ga Toshiue ni Koi Shicha Dame Desu ka?
中学生が年上に恋しちゃダメですか？
A college student named Inori, who fears men due to a past trauma, is rescued by Riku, a junior high student. Inori finds it endearing when Riku tries to act mature, but Riku develops deep feelings for her. Meanwhile, Inori's younger sister, Kasumi, also begins to have romantic feelings for Riku.