Comment by kei on Unchanged Man - Chapter 84

@kei so Jeong Yuwon is shown as trying to blend into the background as a normal office worker. Everything changes when his former high school classmate, Gu Dohun shows up as his new team leader, Dohun is overly possessive, Psychotic guy and seems intent on taking over yuwon’s life. Yuwon remembers dohun as the bullied transfer kid from back in high school whom he tried to quietly help. But in the Reality yuwon was thr one to survive the horrific abuse he actually suffered in school, Yuwon’s brain rewrote and made his own history erasing his victimhood and projecting it onto dohun instead and dohun was the only person who tried to save Yuwon back then. When he realized Yuwon dealt with the trauma by blaming him, dohun just leaned completely into the villain role (which is seen in his expressions) he keeps yuwon isolated under the guise of "protecting" him.
We're seeing both povs as you know from yuwon pov he's interpreted as villain but from dohun's pov yuwon is someone he's protecting
And yes this is past