Hina, who is the type to be faithful to her crush even though she thinks she might be being deceived, is invited by her boyfriend as usual to go to his house, when suddenly, a man in work clothes she doesn't recognize appears and starts to devour her voluptuous body. At first, she is surprised and resists, but when her boyfriend tells her, "I want to see you being violated by another man...", she can't refuse and as she accepts the man's caresses, she gradually starts to feel aroused, and finally she accepts his rock hard cock and cums over and over again. After that, more and more strange men come, and the intense orgasms that leave Hina with no time to breathe develop into a massive orgy that attacks her voluptuous body!