Overview

Yuu has been living in a dormitory at a faraway school for three years since he left his parents' home. Then, on the day of his graduation ceremony, which marks the end of his school life, his stepmother, Marina, runs up to him with a huge smile... That night, at a graduation celebration for just the two of them, Marina was so happy that she drank too much and passed out. Then, as a gift to him as a graduation gift, she gently guided his hand to her chest... Guided by her stepmother, whom she admires, Yu climbs the stairs to adulthood yet again.