Oh, probably Xiao Shou and Xiao Gong died a long, long time ago. Xiao Gong sealed his soul in Xiao Shou's specially made jade pendant and fell into the dust with his body. Xiao Gong entered reincarnation n years ago, but he has no memory of his past life and is already in the high-tech modern era. Xiao Shou just slept on that piece of jade pendant that did not rot with the corpse, until one day...
Intention: positive energy~