Jin Ri‑yeon is a freelancer who, against all odds, wins the housing lottery and becomes the owner of an apartment. Since she is about to get married, she thinks all she needs now is a newlywed loan and everything will be set. But then she catches her boyfriend cheating right before the wedding. She knows she has to call off the engagement, yet she cannot bring herself to throw away this once‑in‑a‑lifetime chance at owning a home. Around that time, she talks with her civil‑servant friend Kim Ui‑shin, who urgently needs a new place but does not have enough deposit money.