Natsuo, who came on a hot spring trip with her fiancé. The maid at the inn they visited looked exactly like an old lover. When she asked for the name... it was the son she had given up for adoption 22 years ago. Although she left the inn with her fiancé once, she decided to stay one more night because 'I want to stay a little longer.' She couldn't possibly not love the son she gave birth to. As her son washed her back and their skin touched, she could no longer suppress her body's yearning due to the remnants of her old lover and her son's warmth. The forbidden union that should not be crossed is happening now.
