The day before her wedding, Kim Taeyeon was surprised by her fiancé news, Kwon Yul refused to marry her. He contacted his family that he had married Jessica Jung in silence in the UK. Worrying to the contaminated family's dignity, Taeyeon bore her appeal and forced Stephan Hwang to be his brother Kwon Yul to marry her.

Initially Stephan, denying it hard because he didn't want to be part of the team. He was still traumatized by his divorce two years ago and was forced to marry. But Stephan finally agrees with the condition. He doesn't want to be disturbed and thinks that marriage is only temporary. Stephan's words devoured her when he was later linked to Taeyeon because of the nature of her who was patient and obedient to him even though she was not treated properly.

Among them, Kwon Yul came home with his wife Jessica. His family members were surprised to learn that Jessica had been pregnant before marriage. Yul who is straight-eyed is the child. He is aware and feels that he has been used by Jessica. Jessica is threatened with Taeyeon. She often suspects Taeyeon has plans to take her husband away from her.

The conflict began when Lee Sunny, former wife of Stephan suddenly reappeared in his life. Sunny wants to retake her love for regrets with their farewell. After discovering that Stephan had been married, various problems often occur in the life of Sunny, causing her to realize that there is no other man as Stephan.

Housekeeping Stephan and Taeyeon began to falter, their new happiness and affection began to be tested. Stephan almost divorced Taeyeon and was killed by the temptation of the malicious Sunny. There are secrets that have not been broken, unspoken love, and unfinished things in this family. Can Taeyeon face the challenges that hit the house?