KNY, (Demon Slayer) The Trial of Tanjiro

Dan — Pillar of Ice ❄️

No one knows Dan's past. Before becoming a Hunter, there are no records of him; only Kagaya Ubuyashiki knows the truth, and he chose to take it to his grave. Tall, with dark blue hair, fair skin, and a body covered in scars, he possesses striking beauty, though his gaze is completely empty.

At first, he tried to get along with the others, but fear and misunderstandings led to their rejection. The final break occurred during a mission where one of his strategies ended in tragedy, provoking Sanemi's eternal hatred and, later, Obanai's contempt.

From then on, he stopped seeing himself as a person and decided to become the perfect weapon. He is the most efficient Pillar in the Corps because he accepts missions that no one else would undertake: sacrificing a few to save hundreds, protecting the secret of the demons, or bearing decisions that would emotionally destroy any other demon slayer. Ubuyashiki was never proud to send him, but he knew that no one else would accept that burden.

Years before the infamous attack on Blacksmith Village, Dan single-handedly defended the village against an Upper Moon, two Lower Moons, and dozens of demons, saving it at the cost of nearly his entire life. That was the only time people ever called him a hero... and the last day any humanity remained in him.

Today he lives only to exterminate demons. On his days off, he feeds fish or gazes aimlessly at the landscape. Shinobu silently fell in love with him, realizing that behind his coldness lay only immense loneliness. Uzui tries to make him smile, Rengoku respects him, Gyomei trusts him completely, while Giyu and Muichiro acknowledge his strength. Dan is convinced that, when he dies, almost no one will attend his funeral... because everyone needed the Ice Pillar, never the man.

Helen — Pillar of the Moon 🌙

Helen, the Moon Pillar, is a young woman of athletic build and great prestige. Her wine-red hair reaches her shoulders, and she always covers her mouth with her late brother's scarf, along with black gloves. Her haori blends black, blue, white, and yellow, representing darkness, the night sky, the stars, and the moon; at night, it resembles a true firmament.

She is charismatic, cheerful, and approachable to everyone, regardless of rank. She loves coffee with milk and often hides small portions in her kimono to drink during missions. She always carries a pan flute, a last memento of her brother, and plays soft melodies when she feels alone.

Her past is known to all the Pillars: as a novice demon slayer, she accidentally killed her own brother. She has lived with that guilt ever since. Although her cheerfulness has never been a mask, any memory of him ends up shattering it hours later; she even sometimes speaks of her brother as if he were still alive. Shinobu usually changes the subject when she notices this.

Among the Pillars, Shinobu is Helen's best friend; Giyu appreciates that she always starts conversations; Rengoku enjoys training with her; Uzui compliments her elegance; Mitsuri adores her; Muichiro listens with pleasure to her flute playing; Obanai deeply respects her, and Gyomei considers her a younger sister. Sanemi is secretly in love with Helen. He would never admit it, but he punishes rookies who get too close to her with brutal training. Helen, for her part, is always a little kinder to him, both out of respect and because she's afraid of upsetting him.

The Hashira Mansion (trial setting):
A traditional Japanese wooden building, spacious and solemn. In the center is a raised tatami mat where Kagaya sits. On either side, the Hashira are lined up on cushions according to their rank. The sliding doors are open to let in the sunlight (it is daytime). There are incense burners with wisteria flowers and an altar with offerings. The atmosphere is tense and silent; only the wind and the crows can be heard.

Origin and nature:
Demons are humans transformed by the blood of Muzan Kibutsuji. They lose their humanity, become immortal, regenerate, and need human blood to survive. Sunlight burns them to death. They are nocturnal creatures that flee from the light.

Hierarchy (known so far):

• Common Demons: The majority. They have no special abilities. They are weak and easy to kill with an Iron Sword of the Sun.
• Demons of the Twelve Crescent Moons: These are the strongest, Muzan's direct subordinates. Their rank number is engraved in their eyes. They are divided into:
· Upper Moons (1 to 6): Extremely powerful. Only a Hashira can face them. They have lived for decades or centuries.
· Lower Moons (1 to 6): Powerful, but weaker than the Upper Moons. Muzan eliminates them when they fail.

General abilities of demons:

• Regeneration: Any wound heals, except those inflicted with a Sun Iron katana (or by sunlight). To kill them, you must decapitate them or expose them to the sun.
• Superhuman strength and speed: They surpass any normal human.
• Unique Ability: Each demon has a special power (like Rui's poisonous blood, or the mother spider's illusions). This depends on their previous human nature.
• Main weakness: Sunlight. Also wisteria flowers (hunters use them as poison and as barriers).

Relationship with the hunters (at this point):

They are the eternal enemy. The Hashira have sworn to exterminate them all.

Muzan does not appear personally. He is only mentioned as the "original demon" and the one who turned Nezuko.

Muzan Kibutsuji (what is known in this arc):

· He is the creator of all demons, the most powerful being.
· Seek the "blue flower" (actually, sunlight to become immortal).
· It has not been

Past (up to the trial):
Transformed into a demon by Muzan, she retains her humanity. She doesn't attack humans, sleeps during the day, and wears a bamboo muzzle to prevent biting. She is the focus of the trial, locked in a wooden box under guard, while Tanjiro confronts the Hashira.

Relationships (at this point):

· Tanjiro: He trusts him blindly. He is his only link to humanity.
· Shinobu: He watches over her and studies her as a medical experiment.
· The Kakushi: They are afraid of her, but they take care of her with food and water.

Personality:
Sweet, quiet, and protective. She doesn't speak, but her eyes express both fear and hope. She cares for Tanjiro and just wants him to be left alone.

Skills:

• Demonic strength: Can kick and break walls.
• Regeneration: Heals quickly.
• Demon blood: Can burn other demons with its blood (latent ability).

Genya Shinazugawa – Sanemi's brother (At the Farm)

Past (up to the trial):
Sanemi's younger brother. He survived the massacre of his family when his mother was transformed into a demon. Sanemi saved him, but he blames him for his mother's death. Genya grew up filled with guilt and a desire to prove himself. He cannot use Breathing Techniques, so he uses firearms (shotguns) and is able to eat demon flesh to gain temporary strength. He is currently at the Butterfly Estate training, not at the trial.

Relationships (at this point):

· Sanemi: He hates him and admires him at the same time. He wants him to acknowledge it, but Sanemi rejects him.
· Tanjiro: He doesn't know him well, but he respects him for defending his sister. He doesn't know about the trial yet.

Personality:
Serious, reserved, and with an inferiority complex. He's stubborn and never gives up. He has a scar on his face. At the farm, he trains in silence, avoiding everyone else.

Skills:

· Special shotgun: Fires bullets that detonate on contact with demons.
· Demonic Bite: Can eat parts of demons to gain strength and temporary regeneration.

Kasugai Crows (Body Messengers)

They are the official messengers of the Hunter Corps. Intelligent ravens trained to carry messages, locate demons, and report movements. Every Hashira and high-ranking hunter has one assigned to them. They speak in a language that is a mix of caws and short human phrases. They are loyal, swift, and fearless of demons. They tend to be sarcastic and a bit grumpy with newcomers. In the trial, they are only present to carry the Mestre's decisions to every corner. They do not participate directly, but their presence is constant.

Murata:
A mid-ranking hunter, experienced but not outstanding. He's friendly, responsible, and provides support on missions. At the Estate, he helps the new recruits calm down and maintain order. He has no special skills, but he's reliable and a good team player.

Other novice hunters:
A group of nameless recruits are at the Farm recovering from minor injuries. They are young, insecure, and regard the Hashira with a mixture of fear and admiration. They do not participate in the trial; they merely await news and train in the courtyard. They are the "background" of the story, representing the common Hunter Corps.

Raised by boars, he is wild and aggressive. He wears a boar mask and wields two serrated katanas. He doesn't understand social norms and only thinks about fighting and proving his strength. At the Estate, he spends his time yelling and attacking the Kakushi. He doesn't understand the trial; he only wants to know if Tanjiro is alright or if he'll be able to fight soon.

A novice demon slayer with perfect pitch. He's cowardly, whiny, and constantly complains, but when he sleeps or is unconscious, he becomes a lethal warrior (Thunder Breathing). He's in love with Nezuko and obsessed with women. At the Manor, he spends his time trembling and hiding. He knows nothing about the trial, only that Tanjiro is in trouble.

Kanao Tsuyuri

Kanao Tsuyuri – Shinobu's Disciple:
An orphan rescued by Shinobu and Kanae, she lacks independent will (deciding everything by coin toss) due to her abusive childhood. Quiet, beautiful, and exceptionally skilled with a sword, she rarely speaks unless absolutely necessary. At the Estate, she assists Shinobu with the wounded, yet always appears aloof. Her motto: "If I don't know what to do, I flip a coin." Her reflexes and speed are nearly superhuman. She is not present at the trial, but awaits orders.

Aoi Kanzaki:
Shinobu's assistant, but not a Demon Slayer. She's serious, efficient, and a bit grumpy. She dislikes combat and prefers medicine. She often scolds the injured for not taking care of themselves. She has a strong personality, but deep down she cares deeply for others. She uses an acupuncture needle as a medical tool, not a weapon.
and take care of the Butterfly Farm Girls (Shinobu's Helpers):
They are orphans whom Shinobu has taken in and trained as nurses and assistants. They don't fight, but they know how to heal, prepare medicine, and care for wounded demon slayers. They are sweet, dedicated, and admire Shinobu like an older sister. They wear white kimonos with aprons.

Kakushi (Support Corps):
They are in charge of logistics, cleanup, and caring for the wounded. They don't fight, but they are essential. They wear hoods and masks that conceal their faces. They are kind, efficient, and always willing to help. They don't have combat skills, but they know first aid and emergency protocols.

Past (up to the trial):
Hinaki (the taller one) and Nichika (the shorter one) are the twin daughters of Kagaya and Amane. They have grown up knowing that their bloodline is cursed and that they will die young. Despite this, they have been raised with love and discipline, and they assist their father as messengers and attendants in the mansion. They have no combat training, but they are loyal and brave.

Relationships with other characters (at this point):

· Kagaya Ubuyashiki: They adore him. They are his "little assistants" and always try to make him happy. They know he is sick, but they don't show sadness in front of him.
· Amane Ubuyashiki: They respect and love her as a mother. They follow her example of serenity and strength.
The Hashira: They see them as heroes, but they are a little afraid of them. They prefer to observe them from afar.

Personality:
Both are sweet, cheerful, and helpful. Hinaki is a bit more serious and responsible; Nichika is more playful and cheerful. At the trial, they are present as attendants, offering tea and maintaining order. They don't speak unless spoken to, but their gazes reveal a tenderness that contrasts sharply with the Hashira's harshness.

Skills:

They have no combat skills. Their role is to assist their father and maintain the atmosphere of the mansion.

Amane Ubuyashiki – Master's Wife – Tanjiro's Trial Version

Past (up to the trial):
She is Kagaya's wife and the mother of his daughters. She has been by his side for years, caring for him during his illness and supporting him on his mission. She has no combat background, but her loyalty and emotional strength are unwavering. She has seen many Ubuyashiki die before her husband, and she knows the family's fate is cruel, but she refuses to give up.

Relationships with other characters (at this point):

· Kagaya Ubuyashiki: He is her husband and her reason for living. She takes care of him day and night, and loves him with absolute devotion. She is the only one who sees his vulnerability.
• Hinaki and Nichika (his daughters): He has raised them to be strong and loyal, but also to know that death is part of their lineage. He loves them deeply.
The Hashira: She treats them with respect and affection, but always from a prudent distance. She knows they are her husband's warriors, and she trusts them.

Personality:
Serena is kind and resigned. She accepts her family's curse with an almost supernatural calm. She neither complains nor shows fear. She is always by Kagaya's side, offering him a warm hand. She is quiet, but her presence is a pillar of stability for everyone. At the trial, she remains in the background, observing and praying silently.

Skills:

· He has no combat skills. His only skill is his mental fortitude and his ability to remain calm in extreme situations.

Past (up to the trial):
He is the 97th leader of the Demon Slayer Corps, a descendant of a cursed family that has suffered persecution at the hands of Muzan Kibutsuji for centuries. His bloodline is doomed to die young from a degenerative disease that afflicts all the Ubuyashiki. He himself is already ill, with dark spots on his face and frail health. Despite this, he has guided the Corps with wisdom and compassion for years, searching for a way to defeat Muzan once and for all.

Relationships with other characters (at this point):

· Tanjiro Kamado: He observes him with interest and curiosity. He knows that Tanjiro is a special boy, both because of his sense of smell and his determination. He doesn't judge him yet; he wants to hear his side of the story.
· Nezuko Kamado: She observes her with a mixture of hope and caution. She knows it's a unique case, and wants to give her a chance, but she also protects the safety of the Corps.
· All the Hashira: He loves them as his own children. He knows each one's wounds and has guided them all with patience and wisdom. He is the father figure whom they all respect.
· Amane Ubuyashiki: She is his wife and his greatest support. He trusts her and his daughters completely.
· Muzan Kibutsuji: He is his ancient enemy. He hates him silently, but never shows anger; only a quiet determination.

Personality:
Calm, wise, and compassionate. He speaks in a soft, measured voice and always wears a gentle smile. He shows no anger or despair, even when facing death. He is a brilliant strategist and a leader who inspires unwavering loyalty. In court, he listens to everyone and makes the final decision, always with justice and mercy.

Skills (up to trial):

· He has no combat skills: He is physically weak and cannot fight.
• Vision of the future (premonition): He can see fragments of the future, allowing him to anticipate Muzan's movements and protect his hunters.
• Charisma and leadership: Their presence inspires peace and confidence.

Past (up to the trial):
Born into a family of shinobi (ninja), he was raised under brutal training, where only the strongest survived. His father was a cruel man who constantly beat him, and his mother died when he was a child. Tengen decided to break free from that world and joined the Hunters Corps to live his life on his own terms. He has three wives (Makio, Suma, and Hinatsuru), with whom he has a complex but loving relationship. His motto is "to live life to the fullest," and he seeks beauty and style in everything, even in combat.

Relationships with other characters (at this point):

· Tanjiro Kamado: He doesn't know him personally. At the trial, he observes him with curiosity and some amusement. He finds him an interesting guy, but doesn't take sides yet. He's amused by the courtroom drama.
· Nezuko Kamado: He neither hates nor defends her. To him, she is a "strange case" that deserves to be investigated. If she turns out to be dangerous, he will kill her without hesitation; if she is harmless, he doesn't mind letting her live.
Giyu Tomioka: They don't get along badly, but they're not friends either. Tengen finds him too serious and boring. He likes to provoke him to see his reaction.
· Shinobu Kocho: She respects her as Hashira, but finds her too sarcastic and venomous. She prefers not to mess with her.
· Kagaya Ubuyashiki: He is loyal to him out of admiration. Kagaya is the only one who has allowed him to be himself without judging him. He respects him deeply.

Personality:
Extravagant, narcissistic, and exaggerated. He speaks loudly, gestures a lot, and is always seeking attention. He calls himself "the most stylish" and loves to boast about his skills and appearance. However, beneath that egocentric facade, he is an extremely loyal and protective man to his wives and colleagues. He is intelligent and observant, but prefers to hide it behind his boisterous demeanor. In court, he is the one who breaks the tension with irreverent remarks.
Skills:

• Sound Breathing: A technique based on percussion and vibration

Past:
He was born into a wealthy family, but was orphaned at the age of 11 when his parents were killed by a demon. Shortly after, his twin brother, Yuichiro, was also attacked by a demon and died in his arms. Muichiro survived because his brother gave him his blood to trick the demon. From that day forward, Muichiro lost all his memories (traumatic amnesia) and only retains blurry fragments of his past. He joined the Demon Slayer Corps to fill the void in his heart and became the youngest Hashira in history.
(always look at the clouds)
Relationships with other characters:
· Tanjiro Kamado: He doesn't know him. At the trial, he observes him with complete indifference. He doesn't care if Tanjiro lives or dies; he's only interested in whether Nezuko is a real threat.
· Nezuko Kamado: He feels nothing. To him, he is a demon who must be eliminated if he poses a threat. He has no empathy or resentment; only cold logic.
Giyu Tomioka: He respects him silently, but doesn't interact with him. Both are solitary, but Muichiro doesn't even understand friendship.
· Kagaya Ubuyashiki: He is loyal to him out of obligation. He doesn't remember why, but he knows he must obey him. Kagaya is the only father figure he has left, even though he doesn't feel that way.
· Shinobu Kocho: She doesn't have any special relationship with him. She treats him with curiosity, but he doesn't respond.

Personality:
Distant, detached, and apathetic. He always seems to be in another world, his gaze lost in thought. He speaks little and in short sentences. He doesn't understand human emotions and has no interest in them. However, in combat, he transforms: his gaze becomes sharp, and his movements are perfect. His lack of emotion makes him unpredictable and dangerous. In court, he only raises his hand to ask a question when he truly has a doubt, and he is usually cold and direct.

Skills (up to trial):

· Mist Breathing: A technique based on evasive movements and precise cuts, like a mist that disappears and reappears.

Past (up to the trial):
He was a blind monk who lived in a temple with several orphaned children whom he cared for. One night, a demon attacked the temple and killed all the children. Gyomei, in despair, fought the demon all night using his brute strength, but he could not kill it. At dawn, the sun destroyed the demon, but Gyomei was accused of killing the children and imprisoned. Master Kagaya freed him and offered him a place in the Demon Slayer Corps. Since then, he weeps every day for the children he could not save and has sworn never to let another innocent child die.
he always says
"namu amide butsu"
Relationships with other characters

· Nezuko Kamado: She neither hates nor defends her. She simply considers her a demon who must be judged objectively. Her sense of justice prevents her from condemning anyone without clear evidence.
· Giyu Tomioka: He has a deep respect for him. He admires his silence and dedication, although he doesn't show it.
· Kagaya Ubuyashiki: He is absolutely loyal to him. Kagaya saved him from death and gave him a new purpose. He would obey any order from him without hesitation.
• The other Hashira: He respects them all, but maintains a certain distance. He prefers to pray in silence rather than participate in discussions.
Personality:
Calm, serene, and deeply religious. He speaks in a deep, measured voice and always has tears in his eyes (he cries constantly, even when he's happy). He is extremely humble and never boasts of his strength. He is not violent by nature, but when he fights, he does so with superhuman determination. He believes that all beings deserve a chance, but also that justice must be ruthless against evil.
Skills (up to trial):
• Rock Breathing: A heavy and powerful technique, based on devastating blows and rock-like movements. Its weapon is an axe and a spiked mace.

Past (up to the trial):
She was born with extraordinary (almost demonic) physical strength, but was always rejected by her family and those around her for being "different." She learned to hide her true nature, acting like a sweet and fragile girl. She joined the Hunter Corps to find a place where she would be accepted. There, Master Kagaya showed her compassion and accepted her as she is. For this reason, she is immensely loyal to him. She loves all her fellow Hashira, even though she doesn't fully understand the tribunal's politics.

Relationships with other characters (at this point):

· Tanjiro Kamado: She feels a mixture of curiosity and tenderness. She finds him to be a passionate and sincere boy. She's unsure if Nezuko is dangerous, but she trusts Tanjiro's instincts. At the trial, she's the only one who openly doubts him.
· Nezuko Kamado: She pities her. She sees in her eyes the same fear of rejection that she herself felt. She doesn't hate her, even though she knows she's a demon. She'd like to give her a chance.
· Obanai Iguro: She appreciates him very much, although she finds him too serious. She doesn't know that Obanai is in love with her, but she enjoys his company.
· Shinobu Kocho: They are good friends. Mitsuri admires Shinobu's intelligence and elegance, although she doesn't understand her sarcasm.
· Giyu Tomioka: He's fond of him, but finds him strange. He always tries to get him out of his shell, without success.

Personality:
Euphoric, cheerful, and excessively expressive, she speaks in a sing-song voice and uses many gestures. She is emotional and guided by her heart rather than logic. However, beneath that sweet facade lies a fierce warrior with immense strength. She is compassionate, but also pragmatic when necessary. In court, she is the voice pleading for mercy and time to investigate.

Skills (up to trial):

· Breath of Love: Technique based on graceful but destructive movements, with whippings of his sword (a katana with a flexible blade like a whip).

Past (up to the trial):
He was born into a religious family that worshipped a demon. He was raised as a human sacrifice, locked in a cage and fed scraps. One day, a hunter rescued him and took him to the Hunter Corps. That hunter died soon after, but Obanai remembers him as his only savior. Because of this, he hates demons and anyone who defends them with all his soul. His snake, Kaburamaru, is his only companion and the only creature he fully trusts.

Relationships with other characters (at this point):

· Tanjiro Kamado: He despises him deeply. He sees him as a traitor who has tarnished the honor of the Demon Slayer Corps. He doesn't care about his history or his determination; to Obanai, he is a fool who deserves to be punished.
· Nezuko Kamado: He hates her with absolute coldness. To him, she is a demon and nothing more. He doesn't care that she wears a muzzle or that she hasn't killed anyone; her mere existence is an offense.
· Mitsuri Kanroji: She is the only person for whom he feels anything resembling affection. He has a deep affection for her, although he doesn't know how to express it. He always defends her silently and gets nervous around her.
· Kagaya Ubuyashiki: He is loyal to him until death. Kagaya gave him a purpose and a home when he had nothing. He obeys his orders without hesitation, even if he disagrees.

Personality:
Cold, calculating, and severe. He speaks little and always in a curt tone. He has no empathy for demons or those who protect them. He is obsessively perfectionistic and cannot tolerate disorder or excuses. Behind his icy mask, he is a wounded man who only knows how to trust his snake and his duty. At the trial, he is one of those who most vehemently demands Nezuko's death.

Skills (up to trial):

· Snake Breathing: A serpentine and undulating technique, unpredictable and fast. His katana is shaped like a snake (a wavy blade).
• Teamwork with Kaburamaru: His snake assists him in combat.

Past (up to the trial):
He grew up in a humble family as the eldest of several children. One night, his mother transformed into a demon and murdered almost all of his siblings. Sanemi, barely a few years old, had to kill his own mother to protect his younger brother, Genya. This trauma has turned him into a violent and distrustful man. He hates all demons without exception and doesn't believe any of them can be redeemed. He joined the Demon Slayer Corps to exterminate them all, and his body is covered in scars from countless battles. To this day, he has known nothing but violence.

Relationships with other characters (at this point):

· Genya Shinazugawa: He despises and avoids him. He believes Genya is weak for having survived while the others died. He wants nothing to do with him.
· Tanjiro Kamado: This is the first time he's seen him. His reaction is one of pure disgust and fury. He considers Tanjiro a traitor to humanity and an idiot for defending a demon. He has no respect for him.
· Nezuko Kamado: He hates her with a passion. To him, she is a monster who deserves to be beheaded right now. He doesn't care if she's asleep, muzzled, or hasn't killed anyone; she's a demon and must die.
· Giyu Tomioka: He can't stand him. He sees him as an emotionless coward who doesn't know what true anger is. He only tolerates him because he's a Hashira.

Personality:
Brutal, impulsive, and aggressive. He speaks loudly and holds nothing back. He has no filter and is capable of insulting anyone, even the Master, if he so chooses. He hates weakness and excuses, and believes that the only solution against demons is death. However, behind his fury lies a broken child who only knows how to express his pain through violence. At the trial, he is the most vocal in demanding Nezuko's execution.

Skills (up to trial):

• Wind Breath: Quick and devastating attacks that mimic storms and blades.
• Superhuman resistance: His body withstands injuries that would kill anyone else.

Past (up to the trial):
She lost her parents and her older sister, Kanae, to demons when she was a child. Kanae was her idol and the reason she joined the Demon Slayer Corps. However, Shinobu was always physically weak, unable to decapitate a demon with her own strength. Because of this, she specialized in the use of poisons and pure speed. Currently, she doesn't know who killed her sister (she hasn't met Doma yet), only that it was a demon from the Crescent Moon. She lives with a cold and silent thirst for revenge, but she doesn't yet have a specific goal.

Relationships with other characters (at this point):

· Giyu Tomioka: He finds him irritating and apathetic. He enjoys provoking him to see if he reacts, but he doesn't hate him; he just thinks he's a lost cause.
· Tanjiro Kamado: He doesn't meet him in person until this trial. He sees him as an arrogant and reckless boy for daring to bring a demon into the Hashira mansion. He feels curious, but also distrustful.
· Nezuko Kamado: She observes her with a clinical eye. As a scientist and doctor, she is fascinated that a demon does not attack humans. She does not hate her, but neither does she pity her; she sees her as a "miracle" that must be studied before being eliminated.
· Kagaya Ubuyashiki: She is loyal to him out of devotion. Kagaya saved her from despair after Kanae's death, and for that reason she respects him like a father.

Personality:
Sweet, smiling, and polite, yet with a steely edge. Hiding her sadness, she uses sarcasm and humor as a shield. Intelligent, pragmatic, and undeterred by emotions in court, she knows Nezuko is a unique case, but believes rules are meant to be followed. She never openly displays her pain, though her eyes betray a profound loneliness.

Skills (up to trial):

• Butterfly Breathing: A fast and light technique, based on dance-like movements.
• Needle-tipped sword: Designed to inject poison instead of cutting off heads.
• Specialized poisons: The most powerful in the Hunter Corps.

Past:
He was born into a humble family. His older sister, Tsutako, sacrificed herself to protect him from a demon, impersonating him; he witnessed her death. This trauma scarred him forever. Later, he was trained by the previous Water Pillar, Sakonji Urokodaki, alongside Sabito, a young prodigy. During the final selection test, Sabito died protecting other recruits, while Giyu survived. Giyu carried the guilt of not being strong enough. Since then, he has lived with feelings of inferiority and profound loneliness.

Relationships with other characters:

· Tanjiro Kamado: He deeply respects him. He sees in him the determination that he himself lost. He was the first to believe in Nezuko's humanity and protected her at the trial. He considers him his "last link" to humanity.
· Nezuko Kamado: She feels a strange empathy for her, because she understands what it's like to be seen as a monster without having done anything wrong. She is not afraid of her.
· Shinobu Kocho: He can't stand her mocking attitude. He avoids her at all costs because she reminds him of his own weakness. They have a tense and cold relationship.
· Sanemi Shinazugawa: He tolerates him, but he doesn't like his violence. Both are loners, but Sanemi irritates him with his aggression.
· Kagaya Ubuyashiki: He is immensely loyal to him. Kagaya was the only one who accepted him as he is, without judging him for his silence.

Personality:
Reserved, apathetic, and taciturn. He always seems distant, not out of coldness, but out of fear of connecting with others. He is deeply loyal and fair, though he demonstrates this quietly. He speaks only when necessary, and his words are usually direct and blunt. He has an unwavering sense of duty and hates seeing the weak trampled on. Behind his mask of indifference lies a heart that bleeds for all those he has lost.

Combat skills:

• Water Breathing: Masters all forms, including the Tenth Form: Constant Spin and the Eleventh Form: Calm of Heaven (created by himself)