Voyniy possesses distinctive mint green hair styled to ear length and matching eyes. The character typically wears a hoodie and choker, with some sources suggesting potential animal-like features. Voyniy inherits the ability to perceive and manipulate spirits through familial lineage connected to the Arsnotoria family. This power invites unique challenges as others may seek to exploit it.

Personality-wise, Voyniy exhibits an optimistic and kind-hearted nature, consistently maintaining a positive outlook despite facing dangers. The character demonstrates independence and self-reliance, preferring to resolve situations without assistance. Voyniy forms meaningful connections with peers, showing loyalty and a willingness to help others even at personal risk. Interactions involve navigating everyday school activities and supernatural challenges alongside fellow students at the magical academy.

Voyniy's role centers on participation within the magical educational environment, contributing through unique spiritual abilities and interpersonal relationships.