Hime, a small white kitten with drooping ears, a heart-shaped face, and large, expressive black eyes, sports a vibrant red ribbon around her neck and head, accentuating her diminutive size—no larger than a human fist. Once a stray, she was saved from crows by two protagonists and adopted by their school principal, becoming a companion to Aria, another resident cat.

Curious and self-reliant, Hime roams classrooms and outdoor spaces with fearless curiosity, undeterred by risks. Her playful nature emerges in habits like gently sucking human fingers, favoring one character’s in particular. Though Aria acts as her vigilant protector, Hime occasionally challenges his focus, hinting at a nuanced bond.

The principal bestowed the name "Ohime" ("grand princess") for her poised, almost regal presence, contrasting Aria’s guardian persona. Inspired by the author’s real-life feline companions, Hime symbolizes a younger generation within their shared world. While her role remains secondary, she enriches the narrative through moments of levity, highlighting themes of camaraderie and the quiet beauty in daily life. Her story, anchored in her integration into the school, unfolds without major arcs, focusing instead on tender, whimsical interactions that celebrate connection.