Young-Hoon (Kim Seung-Woo) works for his mother’s restaurant, but he prefers hanging out with his friends. He then meets Yeon-A (Jang Jin-Young), a tough lady that works in a room salon as a barmaid. She takes the initiative by coming to his restaurant, when he is working, and propositions him in a playful way. They become a couple, but their relationship is always volatile. They fight constantly, but the next moment kiss and make up. Meanwhile, Young-Hoon already has another girlfriend, who is his finance! When his mother learns about his new girlfriend Yeon-A, she pushes her son to get married to his finance. Even after he marries his finance, Young-Hoon continues his relationship with Yeon-A. When Young-Hoon’s wife gets pregnant, Yeon-A starts to feel insecure about their relationship and takes matter into her own hands. She decides to call Young-Hoon’s wife and tell her everything about their relationship.