He's incredibly insecure (He also likely was abused in some way?? It's not very clear) and basically feels the need to push Dohun down to secure his position . He feels like Dohun is the one thing he's above basically
this, and I believe drugs were implied as well.
i thiiiink? Ive also mostly been reading the raws
ya agree with the other person he was def abused like that scene where the father is saying he likes how obedient go do-hoon is, he's just pushing around the brother ++ he also is/was addicted to drugs and i think the reason he was mean towards go do-hoon was pressure put on him by his father to be the heir of the family conglomerate. and also i think they rekindle when they get older (the brother and go do-hoon) cuz when yuwon picks up the go do-hoon's phone he says it was his brother.
ahh gotcha, i do remember reading something about drugs. just the jacking off scene threw me off
genuinely whats wrong with the brother? ive been reading newer raws and the english back and forth so im a little lost