The Cheshire Cat manifests as a female anthropomorphic reimagining of Lewis Carroll's character, retaining feline attributes like visible ears, a tail, and a striped outfit highlighting her nature. She possesses hip-length curly yellow or blonde hair and ochre eyes.

Within surreal dream-like sequences, she repeatedly encounters protagonist Miyuki, displaying immediate romantic and sexual interest—greeting with winks and initiating physical seduction. Her actions include climbing atop Miyuki and attempting to remove her clothing under the pretense of teaching a "lesson of love."

Her behavior embodies the series' themes through playful yet aggressive advances. She disregards Miyuki's verbal protests or escape efforts, persistently refusing rejection during their interactions. No established media adaptations provide details on her origins, background, affiliations, character development, relationships beyond Miyuki, motivations deeper than attraction, or narrative arcs beyond these sequences.