OVA
Description
ID-3 Hoihoi-san is a 10.5 cm tall miniature extermination gynoid created by Mars Pharmaceuticals in 20XX to combat pesticide-immune household pests, primarily cockroaches. She employs an integrated arsenal featuring miniaturized machine guns, combat knives, katanas, grenade launchers, and cybernetic wings loaded with projectile ammunition.

Her physical form combines functional combat design with doll-like aesthetics, characterized by blond hair and purple eyes. She typically wears a black maid uniform, white apron, gloves, and booties, frequently accessorized with rabbit ears. Owners can customize her appearance with various costumes and accessories while she performs extermination duties.

Her core behavioral programming renders her largely emotionless during missions, dispatching targets with lethal efficiency and no hesitation. Aftermarket modifications exist to alter this demeanor, including voice packs simulating cheerful laughter or facial attachments enabling expressions like a Slasher Smile, noted as potentially unsettling to observers.

Across official media, her core functionality remains consistent. The 2004 OVA depicts her autonomously operating in domestic environments, engaging pests and occasionally clashing with the rival extermination unit Combat-san. Manga narratives place her within broader societal contexts involving corporate rivalries developing advanced models like PEST-X-san and Usagear, though Hoihoi-san herself undergoes no fundamental changes. A planned OVA, "Ichigeki Sacchu!! HoiHoi-san Legacy," was canceled during production, contributing no new canonical character development.

Her operational scope includes specialized equipment such as flight packs for aerial combat and restraining bolts to limit aggression toward non-target entities. Her systems prioritize targets solely based on programmed directives, exhibiting no autonomy beyond extermination and customization parameters, and no capacity for personal growth or relationships, despite executing complex combat maneuvers.