Hu Bayi goes to Gulan County with Wang and Gold Tooth to make purchases and they meet Shirley Yang. The four get into a ghost grave without finding anything, and almost get killed by a demon spider. After coming out, Hu Bayi and Wang get red spots too. Shirley Yang shows them her grandfather's notes and tells them that the key to unraveling the red spot curse, the Muchen Bead might be hidden in the Tongtian Grand Buddha Temple in Heishui City. After getting into the temple, they find the treasure chest while fighting against the Black Jade Demon King. Is it the Muchen Bead or something else? To open the treasure chest, they have to get the key guarded by the Black Jade Demon King.