On the third day after her death, Shen Heng, the legitimate daughter of the Marquis's household, sits up in her coffin. She has returned to life with only thirty days left to live, and must use a soul-guiding lantern to ferry wronged spirits and prolong her life. As she races against the clock to uncover the truth behind her murder, she uses ghostly testimony, physical evidence, and the power of the Prince's household to expose the shadowy dealings between the Marquis's household and the Chancellor's residence, until she brings the entire noble clan crashing down. The heroine wields the soul-guiding lantern and can see the number of days remaining in the lives of the living. Each day, she can guide one soul into the lantern to gain more time; forcing a soul into it shortens her life. The hero carries a baleful aura that can drive away evil spirits, but he cannot see the wronged dead.