Responses
What's Caste
I mean "caste system" in their school; it means a class structure that is determined by birth (as shown in the pyramid pictures of alphas being the on top of the pyramids whereas betas at the bottom).
At first it's animal ears, then alpha×betaverse, then caste, then it becomes a horror and somehow the term vore comes to my mind. Interesting, it's vore/horror/shounen ai (๑•ㅂ•)و✧