Although she works as a freelancer, Jin Riyeon wins a highly coveted housing lottery and becomes the owner of an apartment. Since she is about to get married, she believes all she needs is a newlywed loan… until she catches her boyfriend cheating. She knows she should call off the engagement, but she cannot give up this once-in-a-lifetime opportunity. Then she reconnects with Kim Uisin, a civil servant friend who needs to find a new place but does not have enough money for the deposit. Realizing their interests align, the two decide to plan a fake marriage for one purpose only: to secure the apartment loan