In a world of superpowers, Shen Bingning and Lu Yanzhou are sworn enemies. When a cultist raid occurs, Lu Yanzhou sacrifices himself to cover her and falls, his soul accidentally binding with a dormant system. Unwilling to accept the bad news, Shen Bingning digs up his grave to propose marriage, integrating his body into her spiritual sea as a natal contract item, and awakens S-grade dark-ice dual abilities. Lu Yanzhou is reconstructed into a wandering corpse, reduced to her contractual partner. A yandere female lead with strong possessiveness meets a sharp-tongued male lead who loves to complain; the two are forced into symbiosis, joining forces to fight cultists, venture into secret realms, and uncover the secrets of resurrection and growing stronger.