The Upper Moons are the most powerful demons serving Muzan Kibutsuji and constitute the elite of the Twelve Kizuki, an organization structured according to each member's strength.
Unlike the Lower Moons, the Upper Moons have maintained their ranks for decades, and even centuries, reflecting their immense power and the extreme difficulty of defeating them.
Each possesses unique abilities, histories marked by human suffering, and combat styles that push even the most experienced demon slayers of the Demon Slayer Corps to their limits.
Their ranks, from six to one, go from weakest to strongest. Below, we invite you to learn about the three least powerful Upper Moons.
Gyutaro and Daki: Upper Rank 6
Upper Rank 6 is comprised of two demons who share the rank: Gyutaro and Daki, siblings united both in human life and in their demonic existence. Their story is one of the most tragic among the Upper Moons.
In their human lives, they grew up in conditions of extreme poverty and social marginalization.
Gyutaro assumed the role of protector for his sister Daki from a young age, which deeply shaped his personality.
After a series of violent and traumatic events, both were transformed into demons by Muzan Kibutsuji.
Daki possesses the ability to manipulate demonic sashes that she uses as extensible weapons. These sashes can cut, trap, or defend, and also allow her to attack from a distance with great precision.
Gyutaro, for his part, uses two poisonous scythes as his main weapons. His blood contains an extremely lethal poison that progressively weakens his opponents. Additionally, he possesses very advanced regeneration even by the standards of the Upper Moons.
The true danger of this Moon lies not only in their individual power but in the absolute synchronization between the two siblings. While one attacks, the other covers defenses or looks for openings, making them an extremely difficult coordinated combat system to break.
Their main weakness is precisely emotional: the connection between them is so strong that any imbalance in their relationship directly affects their combat performance.
Gyokko: Upper Rank 5
Gyokko is a demon with a completely distorted view of art and beauty.
Before becoming a demon, he already showed obsessive tendencies with artistic creation, albeit in a macabre way. His new nature took that obsession to the point of turning it into a form of aesthetic sadism.
His body is abnormal even among demons, with a flexible form that allows him to move within jars and vessels, from which he can emerge in combat. This ability makes him a difficult enemy to locate and predict.
Gyokko's main technique is the manipulation of demonic jars, from which he summons deformed creatures or powerful aquatic attacks. He can generate demonic fish that attack in mass or extremely sharp water projectiles.
Furthermore, Gyokko can modify his own body, adopting hybrid forms that increase his offensive capacity.
His perception of art leads him to consider destruction as a form of expression, which explains his cruel and obsessive behavior.
His main weakness lies in his extreme narcissism. His need to validate his "art" leads him to underestimate his opponents, which opens up opportunities in combat for more strategic slayers.
Hantengu: Upper Rank 4
Hantengu is one of the most complex demons among the Upper Moons due to his fragmented nature. At first glance, he appears as a weak, tearful, and seemingly harmless old man, but this appearance is deceptive. His true power lies in the division of his personality into multiple independent entities.
Before becoming a demon, Hantengu was a human criminal accused of multiple crimes and always avoided taking responsibility for his actions, denying any guilt. This characteristic persists after his transformation into a demon, where his mind fragments into different "emotions" that act as separate bodies.
His main ability is the physical manifestation of emotions, which generates clones with distinct abilities. Each represents a specific emotional state such as anger, pleasure, fear, or resentment, and all possess their own combat abilities.
Among these manifestations, his anger form stands out, concentrating much of his attack capability, and his resentment form, which specializes in defense and is capable of protecting him even in extreme situations.
As the battle progresses, these divisions can merge or evolve, increasing the overall danger.
His different clones seen are the following:
The Four Emotional Clones:
His original body divides into four independent entities, each with its own weapon and ability based on Japanese folklore:
- Sekido (Anger): He is the leader of the group. He uses a staff with the ability to summon and manipulate devastating lightning.
- Karaku (Pleasure/Joy): With a relaxed attitude. He uses a giant fan to generate gusts of wind so strong they destroy buildings and send slayers flying.
- Aizetsu (Sadness): Always depressed and pessimistic. His main weapon is a sharp, three-pronged spear capable of shrinking, growing, and making long-range thrusts.
- Urogi (Joy/Delight): With humanoid features and bird wings, he is the most euphoric and flies around the battlefield. His main attack is a powerful sonic scream.
Zohakuten (Hate Clone)
This is Hantengu's ultimate form.
When the situation becomes complicated, Sekido absorbs the other three clones (Aizetsu, Karaku, and Urogi).
He appears as a sadistic young demon who controls gigantic wooden dragons.
He can use all the previous clones' abilities in an enhanced form, such as summoning lightning and gusts of wind.
Urami (Resentment)
This is the embodiment of Hantengu's deep grudge.
When in danger, he can reveal this large fifth entity that jealously protects the real body.
The Original Body (Fear)
This is the base Hantengu, appearing as a cowardly and paranoid old man.
Although he seems harmless, he possesses a vital blood technique: his body can shrink to the size of a mouse and completely erase his presence, forcing the Slayers to search for him while the clones fight for him.
Hantengu's true strength is not in his individual power, but in his ability to multiply and attack from different fronts simultaneously, forcing his enemies to face multiple threats at once.
