Tatsuo, who had moved to Tokyo for college, was enjoying a fulfilling student life living on his own. He had grown accustomed to city life, made many friends, and even found love. However, as time passed, he gradually began to feel homesick. His mother, Azusa Mayumi, sensing his loneliness from afar, expressed her desire to see old family photos, prompting Tatsuo to decide on a visit home. Returning with his girlfriend, Tatsuo rediscovers his mother in a new light, becoming captivated by her previously unnoticed allure. It wasn't just her maternal warmth—it was the intensely feminine, almost obsessive charm she possessed that drew him in.