PART 1 Hyunjin broke up with Yeonjin because he believed the rumor. He entered the house with his new wife. His new girlfriend always makes Yeonjin's daughter clean the house while her daughter is asleep. Yeonjin's daughter is still young and crying. Hyunjin is at work and he doesn't know that his daughter is beating her. Yeonjin is in her room. Hyunjin comes home. His new girlfriend pretends to be cleaning and opens the door for him