He's the primary antagonist of the "Revenge of the Love Failure" arc (愛の失敗作の復讐篇; Ai no shippai-saku no fukushū-hen) in Beastars. He is first introduced as a faux elephant therapist, killing them and using their tusks for ivory to make quick money.

Melon is a half-breed, gaining characteristics from both parents. He is a gazelle but with the jaw, claws, and eyes of a leopard.

(Source: Wiki)