Finding yaoi manga

Does anyone know a manga where uke is like a half-beast and seme is like a hunter and the organization kills beasts and demibeasts. The seme took the uke in cuz he looked human and had no where to go. Uke’s eyes turn kinda black and has ears and a tail when he looses control of his emotions?? And the last chap i think they do it while the uke is in demibeast form.