Spoiler warning: This article discusses major events from the Swordsmith Village Arc and later Demon Slayer developments.
If you searched for Upper Moon 5, the character you’re looking for is Gyokko. He is one of Muzan Kibutsuji’s elite Twelve Kizuki demons in Demon Slayer: Kimetsu no Yaiba. His unusual fighting style and battle against Muichiro Tokito make him one of the series’ strangest villains.
Gyokko holds the fifth position among the six Upper Ranks before his defeat. His powers center on enchanted porcelain vases, fish-like creatures, poison, and rapid movement between pots. His death also creates an unusual question because his position is never clearly filled afterward.
| Quick fact | Answer |
|---|---|
| Character | Gyokko |
| Organization | Twelve Kizuki |
| Rank | Upper Rank Five |
| Master | Muzan Kibutsuji |
| Main arc | Swordsmith Village Arc |
| Main opponent | Muichiro Tokito |
| Key ability | Vase-based Blood Demon Art |
| Japanese voice actor | Kohsuke Toriumi |
| Later replacement | No confirmed replacement |
Who Is Upper Moon 5 in Demon Slayer?
Gyokko is Upper Moon 5 and one of the Twelve Kizuki serving Muzan Kibutsuji. He attacks the Swordsmith Village alongside Hantengu and fights Mist Hashira Muichiro Tokito. Gyokko uses magical vases for movement, summons dangerous aquatic creatures, and eventually reveals a stronger transformed body.
Gyokko immediately stands apart from most demons because his body barely resembles a normal human. His pale torso emerges from a porcelain vase, while his facial features appear in unnatural positions. Small arms, unusual eyes, and fish-like details reinforce the aquatic theme behind his abilities.
His personality is equally unsettling throughout the Swordsmith Village storyline. Gyokko considers himself an artist and treats mutilated bodies as artistic creations. Criticism of his work can distract or anger him during combat.
Why Is Gyokko Ranked Fifth?
The upper ranks form the highest tier of Muzan’s Twelve Kizuki hierarchy. Gyokko sits below Hantengu, who holds the fourth position. He ranks above the original sixth-ranked siblings Daki and Gyutaro.
That placement identifies him as one of Muzan’s strongest active followers during the Swordsmith Village storyline. An ordinary Demon Slayer would face overwhelming odds against him. He possesses regeneration, supernatural speed, dangerous techniques, and an unpredictable Blood Demon Art.
Muichiro defeats him only after undergoing a major change during their battle. The Mist Hashira manifests his Demon Slayer Mark and gains greater speed. That context matters when comparing Gyokko with demons ranked beneath him.
What Powers Does Gyokko Have?
Gyokko’s Blood Demon Art revolves around porcelain vases that can appear throughout his surroundings. He can move between these vessels and quickly change his position. This ability makes his movements difficult for an opponent to predict.
The pots also function as more than transportation devices. Gyokko releases dangerous fish-like monsters and launches other attacks through them. During the Swordsmith Village assault, these creatures spread through the area and threaten numerous swordsmiths.
One dangerous technique traps Muichiro inside a large prison of water. The attack limits his movement and slowly deprives him of air. Gyokko can therefore control an enemy without depending entirely on close-range attacks.
He later sheds his earlier appearance and reveals a more powerful form. This transformed body improves his mobility and physical fighting ability. Fish-like scales cover much of his body while his attacks become more dangerous.
Gyokko’s Role in the Swordsmith Village Arc
Gyokko becomes important before his main fight because he uncovers valuable intelligence for Muzan. His information points toward the hidden Swordsmith Village. The location matters because Demon Slayer Corps members depend on its swordsmiths for their Nichirin blades.
Muzan sends Gyokko and Hantengu to attack this strategically important settlement. The two demons bring different abilities to the assault. Their arrival forces several important characters into separate battles across the village.
Gyokko’s powers suit this mission because his creatures can spread through a large area. His pots also let him change locations without following ordinary paths. That combination lets him threaten both fighters and civilians.
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How Does Muichiro Defeat Gyokko?
Gyokko eventually encounters Muichiro while the Hashira is helping protect the village. He initially controls much of their confrontation. At one point, his water-based attack leaves Muichiro in danger.
The situation changes after Muichiro survives and manifests his Demon Slayer Mark. His speed and reactions improve enough to pressure the Upper Rank demon. Gyokko becomes increasingly frustrated because Muichiro refuses to admire his supposed artistic greatness.
The decisive advantage comes from Muichiro’s Mist Breathing and rapid movement. Gyokko struggles to track the Hashira once his speed increases. Muichiro eventually breaks through his defenses and decapitates him.
This battle can make Gyokko appear weaker than his rank suggests. The circumstances instead demonstrate how dramatically a marked Hashira can improve during combat. They also show how Gyokko’s pride creates openings for a disciplined opponent.
Why Was Upper Moon 5 Never Replaced?
After Gyokko dies, the story eventually introduces successors for certain other vacant Upper Rank positions. Nakime later occupies the fourth rank after Hantengu. Kaigaku becomes the new Upper Rank Six.
The fifth position receives no comparable confirmed successor. No named demon is canonically established as the new Upper Rank Five. This creates one of the more interesting gaps in Muzan’s later organization.
That absence has naturally encouraged fan theories. Viewers have suggested possible hidden replacements or overlooked characters. Those ideas remain speculation rather than confirmed events within the story.
The safest answer is straightforward: the story never confirms a new fifth-ranked demon after Gyokko’s death. Readers should distinguish that canon answer from online theories. A character does not become an official Upper Rank because a fan explanation seems plausible.
Was Gyokko Stronger Than Gyutaro?
The official hierarchy places Gyokko at five and Gyutaro at six. That order provides the clearest basis for understanding their standing within the Twelve Kizuki. Muzan’s ranking structure places Gyokko in the higher position.
Some fans question the ranking because Gyutaro’s battle appears longer and more destructive. Visual spectacle alone cannot establish which demon should hold the higher official rank. Different opponents and circumstances shape how every major battle develops.
Gyokko also faces an opponent whose abilities change significantly during their confrontation. Muichiro develops his Demon Slayer Mark before overcoming him. The fight therefore cannot be judged like an unchanged one-on-one battle.
Gyokko’s abilities are dangerous in less obvious ways. Teleportation, summoned monsters, trapping techniques, poison, and physical transformation give him several options. His fighting style focuses heavily on controlling space and confusing his opponent.
What Makes Gyokko Different From the Other Upper Ranks?
Gyokko combines physical horror with an exaggerated obsession with art. Several demons retain recognizable human shapes, but his design abandons ordinary anatomy almost completely. That choice gives him an instantly recognizable appearance among Muzan’s strongest followers.
His strategic value also extends beyond direct fighting. He discovers information that leads Muzan toward the hidden Swordsmith Village. That discovery enables a serious attack against a vital part of the Demon Slayer Corps.
His biggest weakness is psychological rather than supernatural. Gyokko desperately wants others to recognize his artistic superiority. Muichiro exploits that vanity by refusing to give him the admiration he wants.
Gyokko’s performance also shows how voice acting can shape an animated villain’s personality. Readers interested in that side of animation can explore Newsjoury’s Nicole Sullivan voice-acting profile. It covers her work across animation, television comedy, and characters such as Shego.
Gyokko’s Design and Fish Theme
Fish imagery appears throughout Gyokko’s body and supernatural techniques. His abilities include aquatic creatures, scales, water, and decorated pots. These repeating details give his powers a consistent visual identity.
His obsession with pottery also connects his appearance with his personality. He treats his vases as valuable creations rather than simple weapons. That attachment reinforces his distorted belief that cruelty can become art.
The design makes him especially different from villains who rely on human beauty or elegance. Gyokko is deliberately uncomfortable to look at. His strange anatomy communicates his loss of humanity before he even begins fighting.
What Happens After Gyokko Dies?
Gyokko’s death removes one of Muzan’s established Upper Rank demons. It also marks an important accomplishment for Muichiro. Defeating an Upper Rank demonstrates how much the young Hashira changes during the Swordsmith Village Arc.
The wider conflict continues after the battle. Muzan still has several extremely powerful demons available. The Demon Slayer Corps also faces increasingly dangerous confrontations as the story moves toward its final stages.
Gyokko’s vacant position becomes more noticeable because other ranks receive successors. The absence of a new fifth-ranked demon leaves the hierarchy incomplete. The manga never provides a hidden reveal that clearly resolves that vacancy.
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Frequently Asked Questions About Upper Moon 5
Who is Upper Moon 5?
Upper Moon 5 is Gyokko, a member of Muzan Kibutsuji’s Twelve Kizuki. He appears prominently during the Swordsmith Village Arc and battles Muichiro Tokito. His abilities center on porcelain vases, aquatic creatures, and a transformed body.
Who kills Gyokko?
Muichiro Tokito kills Gyokko during the Swordsmith Village Arc. The Mist Hashira gains a major advantage after manifesting his Demon Slayer Mark. His improved speed and Mist Breathing eventually allow him to decapitate the demon.
Does Gyokko have a replacement?
No confirmed character replaces Gyokko in the fifth position after his death. Later vacancies at other ranks receive named successors. Upper Rank Five remains without a canonically confirmed replacement.
Is Gyokko stronger than Gyutaro?
The Twelve Kizuki hierarchy places Gyokko one position above Gyutaro and Daki. That makes Gyokko the higher-ranked demon within Muzan’s official structure. Individual battles may look different because each demon faces different opponents.
What is Gyokko’s Blood Demon Art?
His Blood Demon Art centers on porcelain vases and fish-themed attacks. He can travel between pots and summon dangerous creatures through them. He also uses water-based techniques and gains enhanced physical abilities after transforming.
What rank is Gyokko?
Gyokko holds the position of Upper Rank Five. This places him below Hantengu and above the original Upper Rank Six demons. He retains that position until Muichiro kills him.
The Bottom Line
Gyokko may receive less screen time than several other major demons, but his role remains significant. He helps expose the Swordsmith Village and attacks one of the Corps’ most valuable locations. His bizarre design and vase-based abilities also give him a distinctive fighting style.
His encounter with Muichiro is equally important for the Mist Hashira’s development. The battle showcases Muichiro’s Demon Slayer Mark and improved combat ability. Gyokko’s pride ultimately makes an already difficult fight worse for him.
The fifth Upper Rank position also leaves an unresolved detail after Gyokko disappears. Other positions eventually receive new occupants, but his does not. Unless official material establishes otherwise, Gyokko remains the last confirmed demon to hold Upper Rank Five.
