The Rise of Mu Gu in Time Travel

He was originally just an ordinary college student on Earth, but accidentally traveled to the Dou Qi Continent and became possessed by Old Man Mu Gu. What opportunities will Mu Gu have after the time travel? In what way will it rise? This book is purely out of interest. You can comment as much as you want. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.