Seo Hyein thought leaving Shin Woojin was her way out. Three years of love, trust, and broken dreams had left her expelled, unemployed, and with no future. The pain of losing it all pushed her to walk away, hoping to reclaim her life. But eight years later, she's lost again, desperate for money to care for her sick sister. That’s when Woojin reappears, offering her a chance she can’t refuse.

Now, trapped in a web of old feelings and new stakes, Hyein faces a decision that could change everything. Woojin proposes a contract that promises both of them something they need, but at what cost? Has she signed her soul away, or can love and business mix?