Spoiler
They actually have beef. His brother treated Jae-kyoung really bad in the past, when Jae-kyoung was still in elementary school and at the same swimming pool as Jiheon. He would insult him and even hit him, because Jaejoon has an inferiority complex. He's just a beta, so he was always jealous of Jae-kyoung being an Alpha. He would always shittalk Jae-kyoung even to Jiheon. He even told Jae-kyoung that Jiheon also hated alphas (even tho that was a lie) just to hurt his lil bro. At the time Jiheon was the only one that was nice to Jae-kyoung, he kept him going </3
I can absolutely understand why Jae-kyoung wants nothing to do with his older brother. â( TīšT )â
Why is bro such a dick to his brother? Its giving immature, especially if they dont have beef