The crazy long hair guy who fought taehoon and got trained by chicken guy is moonsung. I’m guessing taehoon and him met again in an official match which is whne taehoon lost to him- you can see moonsungs face when Taejon has a flashback to being choked when hoobin defeated him.
Person who made xj company was in a prison with pinks haired’s bro before he made the xj company