After finishing his part-time job late at night, Sang-Yeo walk Si-Eun back to her apartment. As a thank-you, Si-Eun invited Sang-Yeo to have a drink at her apartment, and while drunk, Si-Eun began asking Sang-Yeo by saying, “Do you want to prove whether I’m a virgin or not?”
Jinhee barges into the shower while her brother was still masturbating. She shamelessly takes off her panties & tells him to hurry out so she can shower, leaving him fantasizing about doing her on the spot.