Narumi-chan, who has been living with her father alone since her mother passed away three years ago. Her father works hard for his daughter, and seeing her father's figure, Narumi grows up seriously and healthily, and the two of them live together happily. But as the girl grows up, she gradually comes to feel love for her father, even to the point of feeling jealousy towards her deceased mother, and she spends her days masturbating every day as if to suppress such feelings and restrain herself. But one day, when she can no longer suppress her love and lust for her father, the daughter takes a bold action!!