I know that this is out of the main topic of the story but I'm bothered about jaekyung's e...

They're cauliflower ears! They're pretty common amongst mma fighters, I guess the author just wants to add that little detail for Jaegaeng

comes with the sport

I like that its realistic. Just to make him more “appealing” they didn’t erase a boxer’s cauliflower ear

It's alright babe! Some MMA's ears are like that, you can try and search it up! (=・ω・=)

i swear i thought i was hallucinating when i first saw them til i found out its actually a thing

Oh is that so? Thanks for the info now my curiosity for weeks has finally answered (⌒▽⌒)