For three years since leaving home, Makoto had been living a dormitory student life. On his graduation day, as he headed home reminiscing with classmates, suddenly appearing before him was his stepmother, Marika. She had come to celebrate his new beginning, greeting Makoto with a warm, affectionate smile. They agreed to have dinner together, and that night, Marika—slightly drunk—asked Makoto to escort her back to her lodgings. Inside the room, the two shared heartfelt words, savoring a tender, intimate moment. That night, their relationship took a new turn.