Misaki lives alone with her mother, and while her mother is away on a long business trip, her uncle comes to stay and look after the house. At first hesitant, Misaki gradually gets used to living with him and even starts looking forward to his presence. However, one night, her uncle proposes marriage to her mother. Misaki warmly accepts the idea, and overjoyed, her uncle—who normally doesn't drink—ends up getting drunk. The next morning, Misaki wakes up with a hangover to find her naked uncle lying beside her. Before she can react, his pent-up desire overwhelms him. As she showers, he forces his erect cock into her small mouth and cums inside. In that moment, his lust spirals out of control...