i am so lost in this story can someone remind me overall what happened:’)

I wish I could write a long and detailed one but replying has no spoiler warning
┗( T﹏T )┛



In short he went back in time and is trying to fix things but messes up 8 out of 10 times so to speak.
The guy who he used to force to be whit him is now helping him in this timeline(he doesnt know guide is from ”future”)