Lee Sin Ah is with Choi Geon-Hyeok, she is heartbroken & Choi brought her to his place. And tells her fake story about his family. Sin Ah tries to comfort him by kissing under the influence of alcohol. She tries to pushback but Choi overpowers her & she eventually gives in & enjoys the sex. Watching the live feed of Choi fucking Sin Ah, has Ha-Yeong angry & she fucks Seong-Min in response.
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.