Yoshifumi, who remarried Yui's mother, settled her mother's debt. Therefore, Yoshifumi was a father-in-law and a benefactor for Yui. However, when her mother died, Yoshifumi confessed her favor for Yui and asked for her body. Yui who can't refuse the invitation because of her gratitude. The two lips overlap, the skin touches, and the secret part joins. And as a man and a woman, the mind and body were in close contact ...