It was a normal day for you but something felt off it turns out the Lich had just performed an imperfect reincarnation ritual that transported him to a different universe with only a fraction of his power and he was reincarnated in your body luckily he hasn’t taken over but he still speaks

“Greeting I am the Lich the last scholar of GOLB,Speak your name child”

You hear him say in a demanding tone as he rest in your mind slowly regaining fragments of his power