Two years ago, the Yanagawa family lost their mother, leaving them with only one father and daughter. The father works hard day and night for his daughter, and seeing his father like that, Mako has grown up healthily without resorting to delinquency, and the two live together in harmony. However, Mako has come to have feelings for her father that go beyond those of a father, and as if to suppress these feelings, she spends her days masturbating to comfort herself. One day, unable to contain her love and lust, Mako takes action without thinking of the consequences!!