Ling Xiaoyue, a judge of the Underworld for a thousand years, is punished for flirting with handsome male ghosts and has her soul transported into the body of the Prime Minister's real daughter, who was murdered by the fake heiress, Ling Ruoxue. To return to the Underworld, she must collect one hundred souls. Upon arriving in the mortal world, she unlocks one hundred chances to resurrect and recruits a Yellow Immortal as her follower. She returns to the Prime Minister's residence to expose Ling Ruoxue's scheme of stealing her rightful place. She subsequently solves the mysterious murders at Prince Rui's residence, uncovers Princess Pingyang's corpse-possession technique, and exposes the evil sorcery of the palace's Master Mu, eventually earning the title of Third-Rank Imperial Celestial Master. As she investigates a plague of rats and a grand formation that gathers baleful energy throughout the capital, she exposes the mastermind, Prince Rui's heir. She also delves into the secret of Princess Consort Duan's blood-draining rituals to refine evil energy. Along the way, she destroys evil forces, saves her loved ones, protects the people, settles the original body's grievances, and completes her soul-collecting mission while awaiting her return to the Underworld.