After the death of his wife, the Nagisa family became a single-parent household with just the father and daughter. The father worked hard for his beloved daughter, and Mitsuki, seeing her father's dedication, grew up bright and cheerful. However, Mitsuki gradually developed feelings for her father that went beyond the ordinary parent-child bond. To suppress these feelings, she masturbated every day to comfort herself. But one day, when her father brought up the topic of remarriage, Mitsuki, who usually never complained, couldn't contain her pent-up desires and went wild!