Looking for this manga

So it could have been omega/alpha manga but I think it was actually a sub/Dom manga where sub is a model who goes thru stuff ig and models some collars n clothes. He always wears black when out of model mode lol. I can't remember too well ╥﹏╥ but he meets a green flag Dom who becomes his manager or bodyguard or driver or something but it's the first time the sub feels safe around a dom and in the end the sub ends up making a company that makes collars that he models. The collars are really pretty. Pls help I've be3n trying to find this manga for months