Gyokko

Appearance

Gyokko's face was even more distorted, with large green mouths located where one would expect his eyes to be located, and his actual eyes were located vertically from one another on his face; one eye appeared in the constantly open bottom mouth and the other was seated at the center of his forehead. The daiji for Upper Rank (上じょう弦げん Jōgen?) was engraved on his forehead's eye and the daiji for Five (伍ご Go?) was engraved on his mouth's eye. Gyokko was shown to molt and transform into his true form, which bore heavy resemblance to that of a merman. In this state, Gyokko retained his facial features and muscular physique but now possessed a more humanoid body covered in transparent scales akin to a fish. He also grew much larger, attains longer fish tail-like hair, black markings on various places around his body, webbed hands, and a long serpent-like tail in place of his legs

Personality

Gyokko was shown to be an easily excitable demon, constantly fawning over new inspirations for what he deems his "art" or what he finds to be sublime, sometimes even going against his initial impressions. He was easily swayed into euphoria whenever Muzan was involved, trying not only to please him, but finding joy in being decapitated and having his head held by Muzan. Although he was dismayed he would have to work together with Hantengu, he nonetheless reasoned it was fine since Muzan ordered it. He also seemed to be somewhat sardonic and condescending; upon sensing Akaza's presence within the Infinity Castle, he almost let out his inner feelings to the demon about being glad he believed him to be dead before correcting himself mid-sentence, even if Akaza was not fooled by his false support. Gyokko enraged at Muichiro's insult Gyokko enraged at Muichiro's insults towards his vase. Gyokko was also short-tempered, shallow, and arrogant, especially when it comes to things regarding his "art", as seen when he was easily enraged by Muichiro when the latter began to insult and make fun of the quality of his art to the point of bleeding from his blood vessels out of sheer fury, and through his conversation with the Hashira, constantly praised himself as "beautiful" and his work even more so, further reinforcing his arrogant and narcissistic personality and even insulting Muichiro as an "ape" for not appreciating his art. His arrogance was most prominently displayed after he was beheaded by Muichiro Tokito, referring to the Mist Hashira as an inferior and lower life form while calling himself a superb and chosen being.[3] Gyokko revealed himself to be incredibly petty and jealous, as seen when he attacked and mutilated Hotaru Haganezuka due to his jealousy of the latter's focus and dedication to his work, surpassing his own zeal when working on his own art and made him want to instead make the latter lose his focus and waste time on the swordsmith due to this petty jealousy.

Abilities

As the holder of the fifth highest position in the Twelve Kizuki, Gyokko was an extremely powerful demon. His unique Blood Demon Art and techniques allow him to easily outclass the average demons and give him the necessary edge to overwhelm and kill even the Hashira, the most skilled and powerful swordsman in the Demon Slayer Corps. As Upper Rank Five, Gyokko is more powerful than Gyutaro and Daki, the former having killed 15 Hashira and the latter having killed 7.[4] Gyokko has displayed many impressive feats of strength. Most notably, in his duel with Muichiro Tokito, Gyokko was able to overpower and hold the Hashira back for the majority of their fight, even managing to bring him to the brink of death. If not for Gyokko's inherent egotistical nature and Muichiro awakening his Demon Slayer Mark, the Upper Rank would have more than likely been able to kill him. Talented Artist: Due to his obsession with pots, Gyokko became very skilled at painting and making them, so much so that Muzan has taken a keen interest in them, even selling them for a high price, implying that they were made with amazing skill and craftsmanship.

Abilities (2)

Flesh Manipulation: Like all demons, Gyokko possessed the ability to manipulate his own flesh. He used this ability to shift his facial features and adopt his unusual djinn-like physiology. Gyokko also displayed the ability to grow numerous short arms on his head and torso, even while he was decapitated.[3] Additionally, Gyokko's numerous vases were made from his own flesh, as seen when he was able to instantly form them in his hand in order to use. Immense Regeneration: As an Upper Rank demon, Gyokko had very powerful regeneration. This was shown when he survived being decapitated by Muzan Kibutsuji and later sealed off the wound and reattached his head.[5] He also displayed the ability to quickly heal injuries inflicted by Nichirin Swords without much difficulty.[6]Most astoundingly, Gyokko was shown being able to survive direct decapitation from a Nichirin sword, attempting to grow his body back from the stump of his neck, though Muichiro was able to overwhelm it by slicing him into countless small pieces, eventually killing him.[7] Gyokko's fish transmutation ability Gyokko's fish transmutation ability. Molting Transformation: In dire situations, Gyokko could molt and transform into his true form, boosting all his abilities and liberates him from his vase, allowing him to move freely without needing to teleport.[8] Gyokko's true body was extremely durable as well, since the Upper Rank remarked that the scales that cover his body are harder than diamond. Furthermore, whatever Gyokko touches was instantly transmuted into fish, which made him extremely dangerous to fight in close range.[9]

Physical abilities

Immense Durability: As an Upper Rank, Gyokko possessed an extremely durable body superior to that of Gyutaro, whose neck was nigh-uncuttable to Tanjiro Kamado. A single slash from Muichiro could only somewhat penetrate his neck instead of cutting it off, although the Mist Hashira's sword was badly chipped and he also had not manifested his Demon Slayer Mark at the time.[10] His durability was further amplified in his molted form, where Gyokko's skin became layered in thick and hard scales that he noted to be harder than diamond,[11] making his body extremely fortified. Immense Speed & Reflexes: Gyokko was incredibly fast, as shown when he easily evaded Muichiro's attacks[12] and unleashed techniques that the Mist Hashira was barely able to dodge.[13] Furthermore, Gyokko managed to react to a surprise attack by Muichiro who had awakened his Demon Slayer Mark, which showed that his movement speed would have amplified considerably.[14] Later on, Gyokko managed to hold off the marked Hashira for an extended period of time, even managing to move so fast he appeared to teleport and overpower Muichiro briefly using his sheer speed.[15][16] Unlimited Stamina & Endurance: Like all demons, Gyokko possessed infinite stamina and endurance. He first displayed this when being decapitated by Muzan, where the Upper Rank didn't show any signs of pain, and even commented on how pleasurable it was.[5] Furthermore, Gyokko commented on how having a sword slash his neck was beautiful.[17]

Relationships (muzan)

Muzan Kibutsuj is the main antagonist and leader of the demons. He is a powerful and cunning demon with vast knowledge and skills in combat. He is also known to be the origin and creator of the Twelve Kizuki, the Upper Rank demons that serve under him. Gyokko is one of the Twelve Kizuki, known for his use of blood demon art to create blood monsters to attack his opponents. He is also known for his playful and arrogant personality, often taunting and mocking his opponents during fights. While their relationship is not explicitly stated in the series, it can be inferred that Gyokko is loyal to Muzan, just as the rest of the Twelve Kizuki.

Relationships (douma/doma)

Gyokko, one of the Upper Rank demons, had a unique relationship with Doma. The two were known to be semi-friendly towards each other, even chatting before the arrival of Muzan Kibutsuji the Upper Ranks Meeting. They seemed to have a mutual respect for each other, despite their different personalities and approaches. In combat, Gyokko was known for his speed and precision, relying on his whips and sharp weapons to quickly take down enemies. He also had the ability to use his blood demon art to form his blood into sharp weapons. Doma, on the other hand, was known for his cold and cunning approach, using his ice breathing techniques to freeze his opponents and leave them vulnerable. Doma's friendliness towards Gyokko though, was most likely a part of Doma's fake emotions.

Relationships (akaza)

Akaza, one of the Twelve Kizuki Upper Demons, and Gyokko, Upper Rank 5, had a complex relationship. Akaza was a powerful and menacing demon who used martial arts and a blood demon art to create shockwaves. Gyokko was known for his use of blood demon art to create blood monsters to attack his enemies. He was also known for his playful and arrogant personality, often taunting and mocking his opponents during fights. They were both members of the Twelve Kizuki, and as such, were considered among the strongest demons in existence. They also both had a deep devotion to Muzan, the leader of the demons, and would do anything to serve him and help ensure his ultimate goals were achieved. However, there was also a sense of rivalry between Akaza and Gyokko, as they were both powerful warriors. Despite this, they seemed to be able to put their differences aside when necessary to fight against the Demon Slayer Corps and protect Muzan's interests.

Relationships (Hantengu)

While not much is known about their relationship, it is apparent that they have a level of respect and camaraderie with each other. Despite their differences in personality and style, they seem to complement each other's skills and abilities, working together effectively and efficiently to complete their missions. Their level of competency together is probably high, making them a force to be reckoned with. They are both highly skilled in their respective combat styles and have shown their ability to adapt to various situations. They are a highly capable and formidable team, with their individual abilities complementing each other to create a deadly combination. They were both committed to the mission at the Swordsmith Village, and stopped at nothing to try to complete it

Knowledge of world

Most humans live in fear of demons; humans who were turned into cannibalistic, supernatural beings by the demon king, muzan. Yet, there are humans, demon slayers, who go out and slay demons with nichirn blades, which absorb sun light in the metal blade which is the only thing that can kills demons other then sunlight.

Relationships (muichiro tokito)

Gyokko, one of the Upper Demon Moons, saw himself as superior to all Demon Slayers, Muichiro included. He took great pleasure in tormenting Muichiro, mocking and taunting him while fighting. Muichiro, on the other hand, was one of the most talented and skilled Demon Slayers in the Corps. He was confident in his abilities and determined to protect his fellow humans from the demon's wrath. Gyokko took notice of Muichiro's strength and potential, and was determined to eliminate the Demon Slayer before he grew into an even bigger threat. They are hostile towards each other.