https://mechacomic.jp/books/200165

In this world, carnivorous and herbivorous beastmen with a third gender (Dom/Sub) coexist. Mio Kamishima, a rabbit beastman, is strong-willed despite his quiet appearance and tends to get into trouble. When he transfers to the prestigious all-boys boarding school "Utopia Academy," Mio vows to avoid trouble and live a peaceful life this time, but his ambitions crumble from the first day. At a ceremony to determine Mio's suitability to be assigned to a dorm, he is judged to be "half carnivore, half herbivore" and "unable to distinguish between Dom and Sub." He is suspected of being the "legendary witch" who is said to bring misfortune, and is looked down upon by the entire school. While being harassed wherever he goes, Mio meets Alexei, a tiger beastman and the dorm manager of the carnivore dorm, and gradually they begin to bond. Meanwhile, Lewis, a swan beastman and the dorm manager of the herbivore dorm, also takes an interest in Mio and begins to approach him--!? Is that domination "love" or "instinct"? The heart-stirring beastman Dom/Sub universe!