is it this one?
http://www.mangago.me/read-manga/flow/
if not sorry but am following too..
http://www.mangago.me/read-manga/unordinary/
I started reading this but never really got through that much, but I think you're talking about this
hey.. r still searching.? u kbow I fouund one very similar to what u asked. and I read it before buut totally forgot about it. and by searrching on google it said that its very similar ti BNHA ... so tell me if it is k??
http://www.mangago.me/read-manga/mx0/
I am still searching! And I don't think this is it, the MC wasn't a hot-headed. He was calm and seemed sure of himself despite having no powers. Thanks for the help though! I have changed my approach a little to see if I can find it in any of my bookmarks on other manga sites. I will be sure to let you know if I find it!
Years ago I read the first few chapters of a manga that is very similar to My Hero Academia where the MC doesn't have any powers but goes to a super hero school. The difference is that even after enrolling in this school he still doesn't have powers but keeps a positive attitude. The MC is nice, has black hair, isn't easily riled up, and is also bullied by someone powerful (kind of like the relationship between Deku and Bakugo). I am pretty sure this manga exist! Any clues or leads will be appreciated! (It's possible this mystery comic could have Chinese origins but it is not a webcomic)