A terminally ill woman, possessed in a new world, schemes to survive by marrying the villain’s son, believing she’ll die on schedule. She feigns devotion while secretly planning to escape after finding a cure. But her act backfires when both her formidable father-in-law and unexpectedly devoted husband become fiercely protective. They uncover her plans to vanish and respond with obsessive determination, vowing she will remain with them forever—whether she lives or dies. Trapped by their twisted affection, she realizes there may be no way out.
