Narumi, who divorced her husband 12 years ago, raised Tatsuya single-handedly. Tatsuya, who grew up with his mother's love, successfully got a job. Narumi was relieved that her child rearing was over, but she was a little lonely. On the other hand, Tatsuya invited Narumi on her trip on her day off. He was thinking of confessing to her mother on this trip. That she always liked her, she was a woman.
