A younger brother lives with his older brother and sister-in-law at their parents' house. Recently, his brother has been coming home late, and his worried sister-in-law tells him she wants to talk. The younger brother, who has always had feelings for her, sets up a hidden camera and waits in his room. Apparently, the older brother is away on a business trip starting today. The sister-in-law, who loves to drink, gets drunk and starts badmouthing her husband, acting spoiled toward the younger brother who kindly listens to her troubles. He rubs her voluptuous breasts and steals a kiss, and in their drunken state, the two of them end up having sex. They share a bed that night, and the next morning, they film themselves having raw creampie sex. This video is the result of capturing his sister-in-law's lewd behavior on camera and posting it.