I'm Sorry

Nanao Seiichi is a sixth-grade elementary school student. One day, he had a nocturnal emission during class, which sparked his sexual awareness. Michiichi falls in love with Naoko, a second-year junior high school student living in Tokyo. Although the two were far apart and there was a 2-year age gap between them, Naoko agreed to date him due to Seiichi's persistent pursuit. However, facing Seiichi who expressed his feelings, Naoko easily rejected Seiichi because of her age. Naoko herself was deeply troubled by her parents' divorce, and the young Seiichi didn't know how to comfort her. The failure of his first love and the regret of his immaturity left wounds in Shengshi's heart. Soon after, Michiichi regained his strength, and in order to exercise himself, he rode a bicycle from Osaka to Kyoto. Naoko was moved by his will and kissed him gently. Soon after, Seiichi was about to move to Kyushu with his father, and he made a promise to Naoko...