After being transmigrated into a brutal game for ten years, Gemma lives as a jewel thief constantly stealing to avoid a bad ending. When she is finally caught by her relentless pursuer, Inspector Raven Hunt, the system declares a bad ending. But instead of sending her to prison, Raven offers her an unexpected choice: prison or marriage.

Forced into a fake marriage with the man who captured her, Gemma teams up with Raven to recover a missing ruby and earn her freedom. As they live together, care for her cat, and face danger side by side, their fake relationship begins to feel real. The thief who once vowed to steal only jewels might end up stealing the detective’s heart instead.

A witty romantic comedy of cat and mouse, love, and unexpected partnership.