The twin daughters of the Shen family, Cen Wan and Shen Qiuqin, share the same body. One is in charge openly and the other is secretly maintaining the illusion. The secret technique of dream-inducing occurs every month, causing memory confusion and overlapping identities. The secret room in the west wing hides the truth, and the bloody words on the wall reveal that "she should not exist." Substitutes, blood contracts, and twin rituals are approaching, and Boss Zhou appears to stir up a century-old fate. When the sisters begin to doubt who is the real body and who is the sacrifice, they can only awaken by tearing apart the illusion. On a rainy night, the letter is burned, and the bronze mirror reflects the soul. Only by giving up its shadow can the soul be found.
