Hikari

Hi, some time ago I think I read a manhwa where mc transmigrated and had seven years to grow up before he met the villain of that world and once he met him he was overcome with the urge to kill him. Later on it turns out it wasn't his first life in that world and the villain (ml) already killed him in his past lives when he tried to kill the ml. One of his previous lives was as a help in the house and from what I remember male lead's uncle or butler helped eliminate him in his previous lives. Also I think his first life after transmigration was as the male lead's older brother, and I think they were royals.
I would really appreciate if someone could help me cuz it's been bugging me for some time and on cannot find it anywhere •ᯅ•

Hi, I'm coming here once again, searching for help in finding a title of a manhua I once read.

Basically mc gets in a car accident (I think a truck ran into his car if I'm not wrong) and ends up in a omegaverse novel his sister wrote. He is a father of the toxic ml of this novel and the current ml is the father of the mc (if I'm not wrong, or just love interest). Also from what I remember our current male lead knows his situation with transmigration and is a psychologist. Mc's mother in law is at first pretty bit**y but then from what I remember mellows out. The first scene after transmigration is that the og character tried to jump off a bridge and that's when our mc lands in his body and ml helps him.

If anyone knows which manhua I'm talking about, I would be really grateful if they could tell me the title, because I've been struggling to find it on my own ╥﹏╥