Yuu left home for school soon after his father remarried. After enjoying a fulfilling student life, graduation day finally arrives, and his stepmother Ikumi runs up to greet him with a smile. The unexpected reunion rekindles the feelings he has secretly harbored for her. That night they celebrate alone, and Yuu escorts her back to her hotel. As their lively conversation continues in her room, Ikumi calls it a gift for the now-adult Yuu and presses her lips to his...