So I know this is probably not the right one to post this on but I tried on novel updates and couldn't manage it so here I go maybe you guys can help I'm looking for novel I can't remember if it was Chinese or Japanese or Korean butt the guy was really smart and his father taught him about helping people and they found the guy who looked like he was injured in the father invited him into the house turns out the guy was a Serial murderer and he took the kitchen knife and stabbed the boys sibling and parents and then himself he was then reborn into another world and decided to change their was magic and I never got to finish reading it I lost the book at the time and I was hoping maybe I could find a translated version
Help please