Shizuku, a masochist, has feelings for her sadistic older brother that go beyond blood ties. The two go on a trip to play some humiliating games. On the way, the younger sister is confused by her pushy older brother, who forces her to give him a blowjob out of sight of others, but she also feels pleasure from it. At the accommodation, the younger sister is ordered to accept the penis of a stranger, and is made to tease her brother's penis over and over again...
