In the backyard of the exhibition hall, the old lady selling bone meal appeared again and told everyone a riddle. Ling Jiushi guessed the answer but didn't know its purpose.A monster in bridal clothes on the roof asked Ling Jiushi to bring the person she was looking for. Ruan Lanzhu judged that she was the sister who was killed by her sister.
In front of the tower the next day, Ruan Lanzhu deliberately scared Xu Jin away, found clues in her bag, and concluded that she was probably the missing sister.