A story where Taeyeon and Tiffany have been married to each other for 3 years but due to some problem, they're not blessed with a child. However, Taeyeon's parents can't take a hold of any patience anymore. They keep on pressuring Taeyeon and her wife to give them a grandchildren. 

Taeyeon who hold the title as the man in the marriage given one heavy solution by her parents. She love Tiffany with all her heart and losing her is a big no. But, she got no power to fight her parents. 

So whether she want it or not, she have to do what her parents want her to which is.... MARRY ANOTHER WOMAN.