Vesper is Zyoro's devoted younger foster and blood brother. From the moment they met, Vesper was glued to Zyoro's side and was beyond upset when they were separated. Following him wherever he went, Vesper eventually found himself a member of Sugar Star and his place. At first insecure with his identity as a Deer Spirit, he grew used to using his human form and only shifts now if the situation desperately needs it. A skilled doctor and surgeon, he is an important member of Sugar Star even if he tends to ruffle others feathers a bit