Hina, the type who, even if she suspects she's being tricked, will devote herself wholeheartedly once she falls in love, goes to her boyfriend's place as usual when he calls her over. Suddenly, an unfamiliar man in work clothes appears and starts devouring Hina's voluptuous body. At first, she's surprised and resists, but when her boyfriend says, "I want to see Hina being violated by another man...", she can't refuse and gradually starts to enjoy the man's touch, eventually accepting his rock-hard cock and climaxing repeatedly. Afterward, more and more unfamiliar men appear, and Hina's voluptuous body is overwhelmed by intense orgasms that leave her no time to breathe, culminating in a wild gangbang!
