Chaika, an alien of the Catian race, holds the position of Analysis Squad Leader within the Catian Starship Crew. Her core duty entails safeguarding the Catian Embassy during crew absences. Exhibiting greater open-mindedness than her peers, she displays no embarrassment regarding her sexuality or exhibitionist tendencies. Among fellow Catians, she appears youngest in age.

Visually, Chaika possesses gray hair arranged in neck-length twintails, yellow eyes, and standard Catian features including cat ears and a tail. She commonly accessorizes with a bell and stockings. Notably, she stands as the sole major Catian character depicted with children.

Her name, meaning "seagull" in Russian, reflects her identity. Within her narrative, she engages with key Catian figures such as Eris and Kuune, consistently emphasizing her hierarchical role and distinctive personality traits among her species.