Whats the title of this

Yo its a yaoi manwha? It was on the popular ones here back then. If i remember correctly the uke was exploring his sexualities? Or finding someone to fuck? And he met someone with the dating app it was a black haired guy with piercings. I dont remember if they slept together but the black haired guy gave him a bunch of business cards.
It looks like an ordinary business/store cards but it has hidden agendas. Since the uke didnt know he went to one of it and ye the owners tried to fuck him and all em were gays. The black haired guy is pretty well known when it comes to those gay fucks/bars. Stuff happened and i think the uke was interested with the black haired guy and wanted to have z3x with him.
The cover was the uke with boxers on a bathroom stall? And i think the title has the word sex on it?

Hope that makes sense ╥﹏╥