Rey spent three years queuing in heaven after her passing. Yet her husband Ronan never filed her death certificate, leaving her trapped as an unregistered spirit. Furious, she slips back to the mortal realm as a roaming ghost to confront him. She haunts his home, wards off evil spirits, and exchanges playful jabs by leaving messages on mirrors. Through their bickering, the buried truth slowly unfolds. Ronan once signed a risky high-stakes contract to pay Rey’s crushing medical debts. A terrible misunderstanding robbed him of their final goodbye. Even once the formal documents were completed, Rey still could not pass into heaven — Ronan’s three years of unrelenting longing bound her to the world of the living. Ronan’s malicious brother Orlan manipulates their wealthy father to destroy Ronan. To shield him, Rey dares to strike a bargain with a demon. Heaven grants her seven days back in the living world, but the steep cost is that Ronan will lose all memories of her once the time runs out. Years later, an aged Ronan arrives in heaven. Against all odds, his memories of Rey return. The pair reunite and share a heartfelt kiss.