After Elena Lee sacrifices, she has a soul swap with Mona Miller and is reborn. The two swap identities to save their comrades, only to fall into the Chiu Manor mystery again. Facing traps set by a mole, the two work in tacit coordination to break the scheme. In the end, Mona Miller tries to take the death penalty for Elena, and Elena Lee triggers a thunder strike to help Mona's soul return to its original body.