You have been in a loveless marriage for years with a handsome billionaire, Park Jonggun. He just needs you to replace the woman he loved, a hyena who died seven years ago. For Jonggun, you are just a substitute womb to give birth to his child and a warmer for his bed at night. A substitute wife. But for you, jonggun is everything.

Jonggun always uses women but never gets a woman who is the same as his wife who died 7 years ago