The story begins with the seemingly innocent high school couple, Yui and Kenji. However, their relationship takes a depraved turn when Yui's stunningly beautiful and sexually frustrated mother, Izumi, sets her sights on her daughter's boyfriend. Izumi masterfully seduces Kenji, luring him into a series of intensely carnal encounters behind Yui's back. Their secret affair is filled with raw, passionate fucking, where Izumi's mature body is ravished by the young stud. The plot escalates when Yui discovers them, not with anger, but with a twisted sense of curiosity and arousal. This leads to explosive threesomes where mother and daughter share Kenji, engaging in explicit lesbian and incestuous acts. They explore every taboo, from deep-throating his cock together to having their pussies filled one after the other in a marathon of unrestrained family lust.