To shake off his feelings for his stepmother, Mariko, Akira went to college far away and is now in his third year. His graduation ceremony ended without incident, and as he made his way back home, tasting the loneliness, who should appear from across the street but... his secretly admired stepmother, Mariko. Overjoyed to see her running towards him with a smile, Akira spends his graduation celebration alone with her. Even after taking her to the hotel, their conversation continues to heat up... With a gentle smile, Mariko says, 'This is Akira's graduation gift' and softly kisses him―
