Responses
https://www.mangago.me/read-manga/down_and_dirty/
I think it’s this one, but you got the roles reversed, the seme was the owner of the company and was presumed dead and the uke was the one who made to be prostitute when they thought the seme died

This yaoi already complete years ago 2-4 years? So a seme working in a club run by a gangster. Uke is the boss of course disguised as a ceo or something he have an assistant. Cant remember much but seme was a bit angst uke is cold. Uke had this ex (tho cant say they’re lovers because he just use him for his own satisfaction) this ex is still working in the club and he is delusional thinking the uke still loves him even tho he never was, the uke assistant actually like the ex (or maybe take pity on him)
Spoiler for the end:
The uke presumably died because someone wanna take over his company. The seme had to endure a year or more being a host/prostitute while waiting for the uke to come back from his fake death assassination. All ik the uke build his empire and army back and disguise it as a cleaning company and this is all his masterplan type shit to overthrow current ceo. The ending is wholesome ig.
Would appreciate it if anyone knows. Thinking abt rereading it (it was already complete when I started reading it)