Makoto lives his school life while living in the dormitory. The three fulfilling years came to an end in the blink of an eye, and the graduation ceremony was finally upon us. At his parents' house, the woman he admired, Mariko, had remarried her father, so he almost never went home because of her embarrassment. However, on the way home, Mariko, who has become her mother-in-law, suddenly shows up to celebrate her graduation. That night, at her accommodation, she said, ``I'm going to give a presentation to Makoto, who has grown up.''