Julie wants to live with him in her apartment. After drinking some beer, she pressures him into admitting that he is still a virgin. When he refuses to admit it, she at least wants him to compare her experience with Judy’s and decide which of them is more delicious.
At night, a young Dae-ho wanders downstairs for a glass of water, only to stumble upon a sight he was never meant to see: Eun-Ae and Yeong-Gu in the heat of a private moment. Confused yet captivated, this unexpected encounter sparks a sudden sexual awakening that will change the dynamic of the household forever.