There's a Big Boss Living in My Body

An ancestor of an immortal cultivator from another world had an accident when he ascended through a tribulation. His soul traveled across all realms and came to a world parallel to the earth's time and space, and shared a body with a sophomore high school student... The ancestor who has adapted to the survival of the strong is always willing to kill people? How can that work? I am just a little flower who has lived under the five-star red flag since I was a child. Why do I have to face such a terrifying scene? Ancestor, please don't move yet. This person asked me to... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.