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?”
Hyeon-Ji sent Sang-Yeo some sexy photos of herself, which turned him on, so to take his mind off after his “scene” with his stepsister, Sang-Yeo decided to video call sex with Hyeon-Ji