Responses

someone cant be "js a bitch", thats shallow effort of understanding a character. one can be a bitch and still have a psychological disorder, OR that could explain WHY that character is a "bitch" in the first place
Also, to add his childhood. Any child can have developmental issues that can manifest into personality disorders at the most neglectful environment
Bro I just realized, Jaekyung MIGHT have OCD—or something along that context. He's so obsessed with winning. Right as he was on a losing streak, he's anxious and extremely irritable, he finds out about a "jinx" and fully believes that this is what's making him lose. He tHen finds sex before a competition is what makes him win, and this becomes a ritual—his compulsions