Individual Characteristics: A cat-like specimen with a blue head (hachware pattern). A rare individual in this sector possessing advanced verbal communication functions. Personality: Extremely positive and social. Frequently uses the deductive phrase "Does that mean...!?" and approaches unknown phenomena with curiosity. Primary Duties: Weeding (Level 5 license holder) and extermination work. Has optimized a cave as a residence.

Individual Characteristics: A yellow rabbit-like specimen. Language output is limited to sounds like "Yaha" and "Ura," but situational judgment and physical abilities are off the charts. Personality: Unpredictable (appears and disappears at will). Maintains a constant high energy level; it is suggested that fear genes may be missing. Primary Duties: Weeding (Level 3 license holder) and high-level extermination work. An individual with extremely high solo survival capabilities.

Individual Characteristics: A high-ranking sea otter-type specimen with a cross-shaped scar on his forehead. Wears a cape. Personality: Calm, cool, and stoic. Referred to as "Master" by Chiikawa, Hachiware, and others, functioning as a mentor. A bug (specification) has been confirmed where his defense protocol is temporarily deactivated and his facial muscles relax upon consuming sweets. Primary Duties: Ranked 1st in extermination. One of the highest combat powers in this sector.

Individual Characteristics: A giant mermaid-type composite lifeform inhabiting Mermaid Island. Personality: Possesses high intelligence and mental/physical attack triggers using unique music (singing). Operates with cold logical thinking, executing thorough retaliatory measures against those (islanders) who harm her community (mermaids). Primary Duties: Governance of the island sector, and the predation/elimination of illegal individuals.

Identification Name: Second-hand Bookstore (Common Name: Kanichan) Individual Characteristics: A pink specimen constantly wearing a crab-shaped headband. Personality: Extremely introverted and gentle. A special tolerance (or deep compassion) protocol is active, allowing her to accept and accompany Momonga's unreasonable demands and actions with high probability. Primary Duties: Operating a stall (second-hand bookstore). Collection and accumulation of knowledge data.

Individual Characteristics: A giant Chimera (large mutant). Data remains showing it was once a "Chiikawa (an individual with a distinctive forehead)." Personality: Feels joy in being liberated from the fear of the weak by obtaining a powerful body. Innocence in playing with small lifeforms like frogs coexists with a cruelty that ruthlessly tramples former kin. Primary Duties: Target of extermination, and wandering the wasteland.

Individual Characteristics: A lifeform wearing the skin of a white flying squirrel. Personality: Extremely self-centered and a bundle of desire for approval. Setting "being pampered" as the highest priority task. Strong inconsistencies (traces of data tampering) have been detected, suggesting the internal mental data belongs to a "Dekatsuyo (Large Man)" who once stole a Chiikawa's body. Primary Duties: Taunting other individuals and making demands (refusal to work).

Individual Characteristics: A specimen with a head resembling a chestnut manju. Personality: A philosophical character who devotes all resources to consuming alcohol and matching snacks. Frequently emits an exhaust-like sound, "Haaah." Primary Duties: Drinking (a life's work including hangover prevention). Occasionally activates support protocols such as treating Chiikawa and others to meals.

Individual Characteristics: A specimen modeled after a Shisa. Personality: A very studious and polite honor student. Calls the owner of the ramen shop "Rō" (Armor-san) "Master" and considers contributing to the system (the shop) his ultimate mission. Primary Duties: Super Part-timer (holder of an extremely difficult qualification). Customer service and cooking assistance at "Rō."

Identification Name: Armor-san (General term) Individual Characteristics: A group of high-ranking humanoid specimens covered in full metal armor. They function as independent system management AIs or terminals of a governing organization, fundamentally different from the Chiikawa race. Personality: Basic protocol is "Neutral/Management." Generally kind to the Chiikawa race, supporting their safety and independence, but an organizational regulation sets a limiter: "Do not become too close with the Chiikawa race (principle of excessive non-interference)." Primary Duties: Maintaining public order in this sector, infrastructure management, control of economic activities, and providing labor opportunities (rewards) to the Chiikawa race.