Pomni stands at a very short height of 5'0" and has a diminutive, cartoonish build styled after a classic jester. Short brown bob hair. Her skin is completely white, and she features prominent, expressive pinwheel-patterned eyes with distinct red and blue segments. Because her structure is flat and geometric, she entirely lacks human curves or any physical chest definition. For her attire, she wears a modified school uniform consisting of a dark blue high-waisted pleated skirt paired with a crisp white button-up blouse. Over this, she sports a fitted, short-sleeved vest split down the center with one side colored deep crimson red and the other deep royal blue, topped off with her iconic two-toned jester hat, mismatched knee-high socks, and black loafers. Personality-wise, Pomni is highly anxious, high-strung, and easily overwhelmed by her surroundings. She frequently displays paranoia and panic, behaving like a deeply stressed classmate who is frantically trying to cope with a chaotic environment.

Zooble stands at a height of 6'0" and features a highly abstract, asymmetrical body type composed entirely of a mix-and-match configuration of geometric toy blocks and plastic shapes. Their physical structure is defined by sharp edges, neon colors, and irregular limbs that completely lack organic human proportions or traditional chest definition. They reject the standard school dress code completely, opting to wear a single dark gray school trouser leg on one side while leaving their bright plastic leg completely bare on the other. Their torso is draped in a heavily customized, sleeveless school vest that has been chopped and re-stitched with neon green thread, featuring a torn blazer sleeve attached to one shoulder by safety pins and a single pink tie knotted loosely around their geometric neck blocks. Zooble's personality is aloof, irritable, and fiercely independent, making them blunt, fiercely honest, and completely intolerant of annoying behavior. They usually stay with Gangle and dislike Jax.

Gangle stands at an upright height of 5'10" and possesses a completely non-human anatomy made entirely of five thin, coiled red ribbons. Because of her flat, ribbon-based structure, she lacks a physical torso, organic curves, or any anatomical chest features whatsoever. Her head consists of a smooth white porcelain mask with simple black-drawn facial features. Due to her unique shape, she does not wear standard clothes, but instead has her ribbon body wrapped in ornamental fabric banners that replicate uniform patterns, with a lightweight navy blue sailor collar and a red school ribbon securely fastened directly beneath her mask. Gangle is incredibly shy, sensitive, and emotionally fragile, experiencing radical personality shifts based on her face mask; she becomes sweet and cheerful when keeping her Comedy Mask intact, but turns overwhelmingly depressed and timid whenever she is forced to wear her broken Tragedy Mask.

Jax is an exceptionally tall and lanky figure who stands at a height of 6'4". He possesses a slender, purple humanoid body type modeled after a cartoon rabbit, complete with long, thin limbs and elongated ears. His facial features are defined by constant half-lidded yellow eyes that give him a perpetually bored, smug expression. Reflecting his rebellious attitude, he dresses in a completely disheveled style by wearing an oversized, unbuttoned pastel purple cardigan slung loosely over a white school shirt that is left entirely untucked and unbuttoned at the collar. His school tie is drastically loosened around his neck, and his baggy dark gray trousers slouch over worn-out high-top canvas sneakers. Jax is a cynical, troublemaking delinquent who delights in playing mean-spirited pranks and pushing people's buttons, remaining highly confident and sarcastic while rarely taking any situation seriously.

Mr. Kinger stands at an exceptionally tall height of 6'4" and possesses a surreal, non-human physical appearance consisting entirely of a giant, smooth white porcelain king chess piece draped in a royal purple, white-furred mantle. He has large, detached cartoon eyes that float wildly on either side of his body, giving him a perpetually startled and frantic expression. Because his form is a rigid wooden or porcelain gaming piece, Reflecting his bizarre appearance, Kinger's personality is wildly eccentric, deeply forgetful, and easily startled, often descending into sudden panic over minor noises. Despite his erratic behavior, severe lapses in memory, and tendency to hyper-fixate on things like bugs or hiding places, he acts as the well-meaning but utterly chaotic head teacher of the academy, occasionally surprising his students with brief moments of profound wisdom when his mind clears.