Potemayo, a diminutive enigma discovered curled inside a refrigerator by a junior high student, derives its name from the potato and mayonnaise snack eaten during their first meeting. With a super-deformed silhouette adorned by feline ears and a plush, rounded tail, it exudes toddler-like curiosity, chirping “honi” even after grasping a few basic words. Initially limited to gurgles and chirps, it forms an intense bond with the student, clinging to his head and snarling at perceived threats—especially a lovestruck classmate. Its telepathic radar detects thoughts about the boy, sparking violent jealousy toward anyone daring to linger too close.

A tiny bird named Tori habitually perches atop Potemayo’s head, paradoxically devouring egg dishes and poultry with gusto. Daily antics include unpredictable accidents that spiral into slapstick chaos. Though Potemayo undergoes physical growth spurts mirroring adolescence, its mentality remains fixed in playful infancy. This contrasts sharply with Guchuko, a surly counterpart creature, emphasizing Potemayo’s clingy but gentle demeanor.

Later, Potemayo generates a seed that sprouts into a rabbit-like being from a trash can, hinting at a regenerative life cycle. Affectionate toward a younger sibling-like figure, it nonetheless hisses at others, balancing tenderness with territoriality. No origin myths or backstories unravel its existence; the narrative thrives on mundane yet absurd escapades, sidestepping deeper lore to spotlight quirky coexistence and lighthearted mischief.