Responses
this probably isn't what you're looking for, but it's similar. it's subverse, not omegaverse, but has everything else.
https://www.mangago.zone/read-manga/ii_ko_ni_dekitara_hometekure/
theres this bl where the seme is a alpha and he works at a bar and the uke is a omega and hes a teacher snd the seme was kne of his students