Responses
Actually nvm I don't think anyone is named Taiga lol
I think the names are something like Tora-something and Shishi something.
I'm not confident at all about their names but I am 100% confident that their names are the character for "lion" (which I believe is the bottom) and "tiger" ( I believe to be the top)

So I don't remember it that well all I remember is that it's an omegaverse and the pair's names has characters that mean lion and tiger. They end up being coworkers and the top is like "hey it's me, do you remember me? I'll get my payback" or something like that and the bottom acts surprised that he sees him then goes "I don't remember you" and the top explains that he made fun of one of his anime things? So the top tells on the teacher that the bottom broke a flask at science class or something?
And then for some reason they're walking home together and the bottom goes to heat and ask the top if he can buy him medicine to stop the heat and so he drops the bottom to a hotel while he goes and buys the medicine. But by the time the top comes back the omega is too deep into his heat and asks top to sleep with him. At first top said no ew, but get convinced and DOES sleep with him but also feeds bottom the medicine.
All that I believe was just the first chapter, if I remember more I'll comment
(I think one of their names if Taiga? I could be wrong and mixing this name from a different manga lol)