Help me find this manga

So I read a manga about like a year ago, I remember very little detail but I'll try explaining the best I can! So I remember there was this poor uke who like started living in a dangerous area and then he met this guy(the seme) who is mute/nonverbal and was very kind and always helped the poor people there but he would never speak. He had black hair I think, and I remember there being some kind of prostitution?? But I'm not sure