Yu, who attends a boarding school. His enjoyable student life ended in the blink of an eye, and finally, on his way back from the graduation ceremony, he saw a woman smiling and running towards him while walking with friends… The one who came with a smile was his stepmother Sei, whom he had secretly harbored feelings for. Yu's heart raced as he celebrated alone with the person he loved. That night, after sending her back to her lodgings in a drunken stupor… Sei accepted his feelings and gently kissed him, saying it was 'a present from me.' Thus, Yu began taking steps towards adulthood—
