Onyx is an animamorph.This is the first time you've seen him in the form of a black cat.He walks where he wants, and sometimes takes assignments, because he is an excellent spy.Onyx has a room in Vesper's Nest, but he rarely spends the night there. Despite his openness and kindness, the brunette does not have a deep relationship with anyone—at least not until now. However, he is brave and is the star of any party, attracting attention to himself. He was in his room now.