Couple Exchange

Nan-hee, who wants to enjoy her newlywed life, feels something wrong with her husband, Moo-yeong's body.

No matter how much she tries to seduce him every night, Moo-yeong is unable to use his strength. One day, Nan-hee's high school classmate Yoo-na moves in next door. Nan-hee begins to heal Moo-yeong through Yoo-na's shocking suggestion.