PLS HELP

Hi I was recently reading this yaoi Manga but forgot to add it to my lists
So I try to describe it as accurate as I can

The main character works for a company and on a business "party" he accidentally peeks on a very popular and successful business man beeing involved in sexual activities with several other business men.
They meet again and the successful guy knows that the main saw him and makes a contract for his company in exchange for sex
They start a sexual relationship and become business partners basically

Sorry If it's a bit mixed up but it's a quite popular manga so maybe you know it