Taekyung has been experiencing a significant decline in her life for quite some time. Burdened with the duty of covering her only sister's hospital bills and other expenses, she struggles to make ends meet with each paycheck. It's no wonder that she turned to borrowing from a loan shark. The real shock comes when she learns that the loan shark she is indebted to is the father of her former high school classmate, Haejoo. Excited about their unexpected meeting, Haejoo proposes an alluring deal: she will pay off Taekyung's debt and manage all her financial requirements in return for Taekyung herself.