
i still dont understand why he kissed his brother..? can anyone explain its put me off this manhwa this entire time

Judging from the blonde(rich kid) could be a way of control wanting to not let go of his control of the ML and the ML started showing that he didnt need him and he has now established his own path. I feel this scares the blonde one ( he has no control of his own life constantly sick /loses matches etc) and the only control he did have is now branching out. Due to the MC in a way remember when he kissed him he knew the MC was watching or would come to the room. He’s manipulative it could be he did it for posession( control) or in his own way he was also jealous. That perhaps he grew some sort of attachment and (love in his twisted way) that he was seen for who he was by ML. And there was no way he could be rejected (or so he thought) lol. Only more chapters will tell .

This or I think he did it because he knew seo-in would hate it (or thought he would) because of his reaction when he found out he was gay. Also ngl i think he might’ve had some weird incestious feelings for seo-in.. don’t even know if u can call it incest thought since they never were really brothers
theyre so goofy i love them