So there's various levels of politeness in speech, but for close friends it's very possible they're all using casual speech. And it's not the same as in Japanese where everyone is chan/san/kun.
oh so there's possiblity to call your friend who's older than you by their name without honorific like 'hyung' or 'sunbae' in korea?
Hyung is actually a term that implies familiarity/closeness.
It depends on the individual people and how conservative they are. Like some people even use formal speech with their immediate family, while others speak very casually.
Also, calling someone by their full name without ssi can also express familiarity/closeness.
i got it, thank you ^^
wow so they're in the same group even tho there are gaps between their age, like that one guy is even 7 years younger than the other one. i know this isn't a big deal but i'm just curious lol, they don't use honorifics? cause i thought in korea honorific is a must. or is it just the translator made it easier so they removed the honorific? hm