Yuji lives in a school dormitory while living in a school. Three years passed in no time, and his graduation ceremony was celebrated ... On the way home, feeling a little lonely at the graduation ceremony when his family was absent, it was his mother-in-law, Maiko, who rushed in with a smile. He was thrilled to celebrate with his mother-in-law who had more than a family feeling. Maiko gently wrapped her up as a "gift for you as an adult", and Yuji took a step toward becoming an adult.