Yoon Seo left the hospital after arguing with Kim Do Han(played by Joo Sang Wook). Later, she came back drunk.
Meanwhile, Si On was celebrating his departed brother’s birthday on his own. Just then, Yoon Seo came into the room while taking her clothes off. Si On said, “Excuse me.” However, Yoon Seo shouted, “Get lost!”
The next morning, Yoon Seo screamed when she saw Si On in the same space.