Honestly i just assumed it but because its also kinda hinted… in chapter 19 the bodyguard/cop was fine with hitting the mc but when he accidentally hit the hyung he was immediately shocked by it and he doesnt seem like the person who would feel bad about hitting people.. also why does he specifically apologise to the hyung or seek him out to tell him that his friend is involved in underground boxing …

I genuinely dont think we needed that extended and excruciatingly long depiction of sa to get that the boss is evil…given that we already saw chapters of Sexual violence perpetrated by him (… on another note LETS GOOOOOOO FINALLY SOME CRUMBS OF THE SIDE COUPLE??? And the hyung seems to have some sort of ptsd im so excited to learn more about his story… and fhe tan guy is A COP???? So interesting hi hello