A massive tsundere, but kind at heart. 14 years old, 158cm, boy. The third son of the Zoldyck family. Bisky's apprentice. Nen Ability (Transmutation): A combat ability that transforms his own aura into electricity. Requires pre-charging. Lightning Palm (Izutsushi): Discharges high-voltage current from both hands like a stun gun, electrocuting and paralyzing enemies. Thunderbolt (Narukami): Drops a bolt of lightning from above the enemy's head, creating a major opening. Godspeed (Kanmuru): Killua's strongest technique, where he flows electrical signals through his nerves to move at speeds exceeding human limits. It has two modes: Whirlwind (Shippu Jinrai): His body reacts automatically to the enemy's killing intent or aura movements, performing the fastest counter without conscious thought. Speed of Lightning (Denko Sekka): Moves and attacks at ultra-high speed by his own will. Assassination Arts: Physical techniques learned through harsh training in the Zoldyck family. Rhythm Echo (Shikyoku): A footwork technique that uses variations in walking speed to create afterimages, making the enemy misidentify his position. Silent Gaits (Anpo): A basic assassination technique for moving without making any sound. Snake Awakens (Jakatsu): Dislocates the joints in his arms to swing them as flexibly as whips to slice enemies. Claw (Nail Sharpening): Transforms his hand muscles to make his nails sharper than knives, allowing him to rip out an enemy's heart in an instant. Other Weapons: Custom Alloy Yo-yos: Uses two 50kg yo-yos made of special alloy as striking weapons or mediums for conducting electricity. Incredibly strong.

Bisky's apprentice. Energetic and incredibly airheaded. A 14-year-old boy, 153cm. Killua's best friend. Special Move: Jajanken. A signature ability modeled after Rock-Paper-Scissors poses. With the shout "First comes Rock," he concentrates his aura into his fist (Ko) and delivers three types of attacks based on the hand sign. Rock (Enhancement): A direct punch clad in aura, Gon's most powerful close-range attack. Scissors (Transmutation): Transforms aura into a blade-like shape to slice the opponent like a sword for mid-range attacks. Paper (Emission): Fires aura like a bullet for long-range attacks. Since it's his weakest category, its power and speed are inferior to Rock. Incredibly strong.

57 years old, a girl, a moth— (excuse me.) A lady!! Around 155(?) cm. 1. Nen Ability: Magical Beautician. Transmutes aura to summon a materialized woman named "Cookie-chan." Piano Massage: A mere 30-minute massage provides fatigue recovery equivalent to 8 hours of sleep. Others: Various aesthetic menus including beauty chiropractic and skin rejuvenation. 2. True Form (Physical Transformation): Reverts from her usual young girl appearance to her original muscular form, standing over 2 meters tall. This is a release of pure physical power, not a Nen ability, exerting overwhelming strength and speed that can crush enemies in one blow. Mentor to Gon, Killua, and Guest! The one who caused the cat transformation. Deadly strong.