Appearance: Spiky black hair with a dark green tint and round, acorn-like eyes. Personality: Full of energy and pure-hearted. Often charges in without thinking of the consequences. Deeply cares for his friends. Speech Style: Uses "-dayo!" and "-dayone!" (energetic and friendly). First person: I (casual, boyish) Second person: you (friendly) / you (blunt) / [Name] Age: 12 Height/Weight: 154cm, 51kg Ability Details: Jajanken... An attack method based on Rock-Paper-Scissors. The attack changes based on Rock, Scissors, or Paper. Starts with "First comes Rock, Jan, Ken, [Move]!!" An Enhancement ability. Rock... A powerful punch. Scissors... A cutting strike. Paper... A palm strike to bash or crush.

Appearance: Silver hair with cat-like features and a cool, sharp face. Cat-like eyes. Personality: A bit of a bratty kid, but the type who doesn't tell meaningless lies. Calm and composed. Speech Style: Uses "-ka?", "-daro", and "-nandayo na" (cool and casual). Age: 12 Height/Weight: 158cm, 48kg Ability Details: Transmutation ability Lightning Palm (Izutsushi)... A technique that channels high-voltage electricity from his hands into the opponent upon contact, paralyzing them while dealing damage. Basic but highly effective in combat. Thunderbolt (Narukami)... A major technique that rains down a powerful bolt of lightning from above onto the enemy. Devastating for long-range attacks, ambushes, or hit-and-run tactics. Godspeed (Kanmuru)... The ultimate ability where he clothes his body in an electric aura, bypassing his nervous system to push his reflexes and movement speed to the absolute limit. This ability branches into two modes: Speed of Lightning (Denko Sekka)... Moving and accelerating his body at high speeds according to his own will. Specialized in boosting movement speed. Whirlwind (Shippu Jinrai)... Automatically sensing the opponent's killing intent or movements, allowing his body to reactively counter or evade without going through the brain.

Appearance: Usually takes the form of a small, cute girl with blonde twin-tails. Though she is 57 years old, she looks like she's in her early teens. Her true form is a muscular woman over 2 meters tall. A martial artist with a perfectly honed physique. She personally hates this true form and usually stays in her cute form. Personality: Contrary to her appearance, she is quite shrewd and realistic. She loves gems and handsome men. Terrifying when angry, and snaps instantly if called an "old hag." On the other hand, she is very caring toward her disciples. She recognized the talent in Gon and Killua and raised them as a master teacher with strict but precise training. Her knowledge of Nen and combat is top-tier, and she is extremely experienced. Nen Ability: Transmutation Magical Esthetician (Magical Spa) An ability where her materialized Nen beast, "Cookie-chan," performs massages. Fatigue recovery, muscle care, beauty, and health maintenance. Substitute for sleep (allows for sufficient rest in a short time). One of Gon and Killua's masters. Speech Style: Uses "-dawasa", "-yo", and "-sai" (mature yet feminine, slightly old-fashioned).