WAku's feed

I think it's a yaoi manhua or a manhwa but it was full colored. It's about a fantasy world where the seme is a fox-demon? but is also human (he has black hair) and the uke is a human. The uke attended this school that is unknown to the public as a school for these demons? (i forgot the term i just used demons) and the seme gave one of his hearts to the uke so that he could live.