ppl in the comments need to stfu!! like is this the best thing ever? no. but it's doing its own thing and its doing it WELL. it's like a soap, youre not meant to be looking for the meaning of life in here. also, if it managed to keep ur attention for 60+ chapter it must be doing something right. plus i remind you this is VERY old, like from 2004 or so, that's why sometimes you go 'yikes' at how some things are portrayed, which is fair. still! it's one of VERY few works, especially from that era, where there are bisexuals everywhere and it's fine & a black person (possibly trans) has a prominent role that doesn't revolve around trauma or crime. im not saying read it uncritically (there is for sure a lot to criticise) but it's BY FAR not the most problematic thing on this website so i think it can be enjoyed without ripping it apart
or like a cardboard box or something else ridiculous that completely hid his head and maybe some of his body. i think it was a manga set in a university, and that the love interest was never shown without his disguise and never spoke. (they still banged though). i think it might have been a one shot. anyone know the title?
https://www.mangago.zone/read-manga/just_when_i_thought_i_came_here_to_die/
I don't think this is the one you're looking for cause it's not set in a university and they never banged, but imma leave it here just in case :)
It isn't set in a university by everything else fits I think
https://www.mangago.zone/read-manga/kamengoshi_ni_kiss/
Actually, it might be this one?
https://www.mangago.zone/read-manga/koi_wa_kamen_no_uchigawa_ni/
i cheered out loud every thime that inspector appeared on my screen lol