At a secluded lakeside resort, biologist Zhang Cheng comes to find his ex-wife, Yan Tong, and is astonished to see her looking youthful again. He learns that she has been using a secret beauty product and discovers that strange disappearances of guests frequently occur at the hotel.

After passing the prefectural-level exam, Pu Songling's family hosted a celebration. Su Xian, a nine-tailed fox, secretly infiltrated the event, excited to have found someone significant from her past in Pu Songling. She later approached him as he traveled to Jinan for another exam. Meanwhile, two demons, Xi Mei and Yu Qing, wreaked havoc, prompting the Lingyuan Sect to send disciples to hunt them down and distribute talismans that revealed hidden dangers. As Su Xian tried to get closer to Pu Songling, unexpected events forced her into a tough choice—one that would reshape both her past and future.