does the uke have black shoulder-length hair?
yes!!
aah, I think I know which one it is, but I really don't remember neither the title, nor the main series all that well... ugh, but I'll think some more, maybe I'll remember something. I know I read it on bato though, so idk if it's even on here...
and the brothers have lighter coloured hair, right?
yes they doo
found it! https://www.mangago.me/read-manga/call_my_squall/ (at least, that's the one I thought of ^^)
this is it tysmm
hh sure thing ヾ(❀╹◡╹)ﾉ~
It's a side story manga from the perspective of the MC's friend from the OG manga. mc has unrequited love for the og MC. The ML is the og mc's younger brother (seme).