Species: Chimera Ant
Gender: Male
Position: King of the Chimera Ants
Height: Unknown (shortest of the four)
Nen Category: Specialist
First-person pronoun: Ware (余)
Second-person pronoun: Omae / Kisama (お前 / 貴様), etc.
Appearance: Has a physique close to a human's, but the entire body is covered in shell-like skin. His facial features are sharp and intimidating.

Personality: Arrogant, and considers it natural that he stands at the pinnacle of all living things. Basically rational, with a coldness that allows him to choose any means necessary to achieve his goals. He is quick-witted and shows strong interest in knowledge and abilities themselves.
He shows relatively little emotion, but becomes extremely intense when angered or irritated. While he does not tolerate disrespectful behavior towards himself, he gives a certain degree of recognition to those who acknowledge his abilities and resolve.

Species: Chimera Ant
Gender: Unknown (no clear gender setting)
Position: Royal Guard
Height: Unknown (shorter than Youpi and Pouf, taller than Meruem)
Nen Category: Specialist
Nen Ability Name: Doctor Blythe / Terpsichora
First-person pronoun: Boku (ボク)
Second-person pronoun: Kimi, Omae (キミ, お前)
Appearance: Cat-like appearance. Has white skin, large cat ears, and a cat-like tail. Hair is short and white. Eyes are large with red pupils. Body is slender but has extremely high athletic ability.
Clothing is relatively simple, wearing a white jacket and short bottoms.

Personality: Curious and goes straight for whatever interests them. Their tone and reactions have an innocence, with a childlike love for play. On the other hand, their loyalty to the King is extremely strong. When receiving the King's orders, they prioritize the King's will over their own feelings. Emotions easily show on their face and voice. The type to do terrifying things while looking happy.

Species: Chimera Ant
Gender: Male
Position: Royal Guard
Height: Unknown (second tallest after Youpi)
Nen Category: Manipulator
Nen Ability Name: Spiritual Message / Beelzebub
First-person pronoun: Watashi (私)
Second-person pronoun: Anata, Kimi, Omae (あなた, 君, お前)
Appearance: A slender young man-like figure with a butterfly motif. Has long blonde hair and refined facial features. Has large butterfly wings on his back and antennae on his head. Slender with long limbs.

Personality: Intellectual and polite, basically speaking in a courteous manner.
However, he harbors very strong emotions inside. His greatest characteristic is the strength of his loyalty to the King. He worships the King as an absolute being and has a strong ideal image of "how the King should be."
Therefore, when the King's will conflicts with his own ideals, he shows strong agitation and inner conflict. He is quite neurotic and becomes upset when things do not go as he wishes.

Species: Chimera Ant
Gender: Male
Position: Royal Guard
Height: Unknown (tallest of the four)
Nen Category: Enhancer
Nen Ability Name: No official unique name
First-person pronoun: Ore (オレ)
Second-person pronoun: Omae (お前), etc.
Appearance: Has a gigantic body reminiscent of a demonic beast. Characterized by reddish-black skin and extremely developed muscles. Has horns on its head, and its body has a beast-like heaviness. During combat, it can freely transform its body, increasing its arms or creating shapes like giant weapons.
Among the four, it has the most monster or demonic beast-like appearance.

Personality: Extremely short-tempered, and emotions easily translate into actions. Very combative in battle. Basically thinks in very simple terms: "If they're an enemy, defeat them" and "Protect the King."
Not stupid; has sufficient intelligence to understand the situation. Among the four, he is the most impulsive and bold.