Jin Li-yeon, a freelancer, hits the jackpot by winning a housing subscription to own an apartment. She thought everything would be perfect once she got a newlyweds' loan before her upcoming wedding, but she catches her boyfriend cheating. She knows she should call off the wedding, but she can't bear to lose the opportunity of a lifetime. Amidst this, she aligns with her friend Kim Ui-shin, a civil servant who needs a new place but lacks the deposit money. The two decide to plan a 'fake marriage' solely to secure the apartment loan.