Mii-kun is a compact, bandage-swathed entity with a stuffed-toy-like form. Its circular eyes morph in response to potent emotions like loneliness, shifting shapes expressively. Measuring 12 centimeters tall, it scurries on all fours when rushed. During tearful outbursts, its body warps with rigid facial edges. The mummy-esque wrappings obscure its origins, though it was dispatched from Egypt by an anonymous parental figure.

Shy but deeply affectionate, Mii-kun craves physical contact and clings to its caregiver with childlike devotion. Separation triggers panic, spurring clumsy attempts to aid chores despite miniature limbs. Extreme emotional sensitivity causes frequent weeping, necessitating hydration checks to counter dehydration risks.

Though initially reserved, it cultivates bonds with humans and supernatural peers once trust forms. Jealousy flares if attention shifts to rivals, tempered by earnest efforts to prove useful. Its diet favors dog food, apple slices, and noodle dishes, consumed with particular enthusiasm for the latter.

Its arrival via coffin delivery startled a high school student accustomed to odd gifts. Initial wariness softened into a mutually nurturing bond, built on shared domestic rhythms and joint problem-solving. The caregiver meticulously logs its quirks and needs, fueling systematic documentation efforts.

Progressing through recorded encounters, Mii-kun exhibits growing confidence in social spheres—engaging in group adventures and befriending fellow creatures. Crises like medical emergencies or communication breakdowns strain relationships but yield cooperative resolutions. Beyond its circle, it acts as an indirect catalyst for others’ personal growth, quietly fostering acceptance and accountability in those it touches.