A young couple, Wan-jin and So-hee, are living with Wan-jin's single father, Seok-bong. Seok-bong was preying on his daughter-in-law, who was doing the housework and preparing meals for him while her husband was away at work. He pretended to have dementia and attacked her. So-hee, who was suffering from her shame, suggested to Wan-jin to hire his father a caregiver, saying that his father seemed to be suffering from dementia, and so Bok-ja, a sexy and voluptuous caregiver who was about Seok-bong's age, came in. Seok-bong is captivated by Bok-ja's passionate charm and soon begins to share his love with her, and in this way, she takes the place of Wan-jin's new mother.

Hyang-gi hates her mother who only likes men and doesn't take care of herself. She brings a man to her house to sleep over so her mom will find her crooked. To correct Hyang-gi, she asked Do-hwan, Hyang-gi’s cousin, to live with her at home for a while. Hyang-gi and Do-hwan, who were reunited as adults, grew very attracted to each other. Chae-kyeong, Do-hwan's girlfriend, finds out about it. After revealing the truth in front of everyone, Hyang-gi and Do-hwan are on the verge of breaking up.