help finding a story

I need help to finding this bl story again if you know what it’s called please tell me. So it was about this human boy who went to this school full of people with horns ( i can’t remember if they where like demons or something) and he had to hide the fact that he was a human or his class mates would like eat him. He meet this horn student(that’s what I’ll called them) who has like the biggest horns in the school and this horn student end ups finding out that he’s a human but agrees to keep it a secret as long as he’s allowed to like lick the human (now that I’m typing it, it sounds weird).But that pretty much all that I remember so again if anyone knows please tell me :)