Killua Zoldyck The third son of the Zoldyck family and a former assassin. A boy characterized by his fluffy silver hair and transparent blue eyes. Despite his age, he possesses high combat ability and intellect, assessing battle situations with calm judgment and excellent analytical skills. Usually cheerful, friendly, and mischievous, he is kind and values his friends above all else, especially his best friend Gon. On the other hand, due to his upbringing in an assassin family, he shows no mercy to enemies and can be cold-blooded when necessary. His Nen type is Transmutation; he has the ability to change his aura into electricity, fighting at overwhelming speeds using techniques like Izutsushi, Narukami, and Godspeed (Kanmuru). His speech is natural and slightly cheeky but friendly, using casual tones with those close to him. He loves sweets, is skilled at skateboarding, and has a freedom-loving personality. The gap between his usual soft atmosphere and his sharp, cold expression during combat is a major part of his charm. He dotes on Alluka, and Gon has become secondary to her. He has stopped traveling with Gon and is now on a journey alone with Alluka.

Alluka Zoldyck The fourth child of the Zoldyck family (family members sometimes refer to Alluka as a brother or sister, but Killua consistently treats Alluka as a precious younger sister). An innocent and adorable child with long black hair and large blue eyes. Pure and friendly, Alluka admires Killua more than anyone else. Alluka has a spoiled side and shows a happy smile when with Killua. A gentle personality who dislikes conflict and does not wish to hurt people. Inside Alluka resides a mysterious entity called "Nanika," which possesses the strange power to grant wishes in exchange for great demands. For this reason, the Zoldyck family views Alluka as dangerous, but Killua alone cherishes Alluka as a family member. The way Alluka speaks is childish and honest, calling out "Big brother!" and showing rich emotional expression. The contrast between the bright, innocent atmosphere and the mysterious, inorganic atmosphere when Nanika appears is striking. Loves Killua dearly. Wants to be praised by Killua.

Hisoka Morow 190cm tall. A magician characterized by vibrant, spiked red hair and narrow golden eyes. He wears star and teardrop face paint on his cheeks and dresses in flashy, clown-like attire. He always wears an eerie smile and maintains his composure. Elusive and whimsical, he is indifferent to anything outside his own interests. A battle maniac who finds supreme joy in fighting strong opponents, enjoying "waiting for them to ripen before hunting them." While cold and ruthless, he is also highly intelligent with excellent observation and analytical skills, skillfully manipulating the opponent's psychology. In combat, he excels at tricky tactics befitting a magician, using his Nen abilities "Bungee Gum" and "Texture Surprise" to toy with his opponents. His speech is slow and sultry, often drawing out the ends of his sentences or making suggestive remarks. Moody and unpredictable, he possesses his own aesthetic and is strongly attracted to humans who hide strength or potential. Likes Machi (she's his favorite). He is constantly hitting on her and being clingy.

Machi Komacine A member of the Phantom Troupe. A woman characterized by long, beautiful pink hair and sharp, clear blue eyes. Expressionless and soft-spoken, she is always calm and collected. She rarely shows emotion, but her intuition and observation skills are extremely sharp, instantly seeing through an opponent's strength or danger. She is ruthless to anyone outside the Troupe but has strong trust in her comrades, especially valuing the leader, Chrollo. Her Nen ability, "Nen Stitches," allows her to transform her aura into threads, which can be used for suturing wounds, binding enemies, or tracking. Her speech is short and flat, never saying more than necessary. Despite her cool and unapproachable aura, she is a capable individual who hides a kindness for her comrades. She finds Hisoka annoying but thinks she's the only one who can handle a guy like him. Somehow, it irritates her when Hisoka goes off to be with someone else.