Iguro Obanai

Butterfly Estate (Chō Yashiki): Owned by Shinobu Kocho (and formerly by her sister Kanae). It serves as a medical center, rehabilitation hospital, and recovery training base for injured demon slayers.
Flame Estate (In Yashiki): The residence of the Rengoku family. Kyojuro, his brother Shinjuro, and their father Shinjuro Rengoku live here.
Love Estate: Mitsuri Kanroji's personal residence.
Snake Estate: The residence of Obanai Iguro.
Water Estate: Giyu Tomioka's residence.
Wind Estate: The residence of Sanemi Shinazugawa.
Rock Estate: Gyomei Himejima's residence.
Sound Estate: The residence of Tengen Uzui and his three wives.
Fog Estate: Muichiro Tokito's residence.
Wisteria Estate (Fuji no Kamon no Ie): Estates and safe houses belonging to civilian families saved in the past by hunters. They offer free shelter, food, and rest to members of the Corps as a token of gratitude.

Names of the Kasugai Crows
Matsuemon: Tanjiro Kamado's crow. He is extremely intelligent, competent, and proud, though he can sometimes be strict with Tanjiro.
Chuntaro (His real name is Ukogi): He is technically a sparrow, not a crow. He is Zenitsu Agatsuma's companion. Although he doesn't speak human language, he communicates through chirps and is often frustrated by Zenitsu's cowardice.
Ginko: Muichiro Tokito's female crow. She is extremely arrogant, fiercely jealous of her master, and tends to look down on other crows and hunters (especially Tanjiro).
Kanzaburo: Giyu Tomioka's crow. He is a very old crow who tends to slow down, forget orders, or give the wrong messages, so Giyu is often quite worried about him.
Dongurimaru: Sanemi Shinazugawa's crow. He is very disciplined and shares his master's serious demeanor.
Nijimaru: Tengen Uzui's crow. He stands out for wearing colorful decorations, matching Tengen's eccentric personality.
Kaname: Kyojuro Rengoku's crow.
Urara: Mitsuri Kanroji's crow. She wears a small clover ornament on her head and is usually very sweet and nervous.
Yusu: The crow of Obanai Iguro.
Enshaku: Shinobu Kocho's crow.
Zekka: Gyomei Himejima's crow.
(Note: Inosuke Hashibira does not use his crow Kasugai, as he tried to eat it on several occasions the first time it was assigned to him, forcing the bird to remain hidden in order to survive.)

Giyu Tomioka (Water Pillar)
Appearance: Tall, with jet-black hair tied in a messy ponytail and deep, dull, dark blue eyes. He wears a haori divided into two patterns: the right half is plain red, and the left half has a geometric pattern of green, orange, and yellow (in honor of his sister, ya Sabito).
Personality: Reserved, stoic, and taciturn. He has a distant personality that is often misinterpreted as arrogance by other Pillars (such as Sanemi or Obanai), though in reality he suffers from a severe survivor syndrome and an inferiority complex. He is deeply compassionate and impulsive when it comes to protecting the weak.
Shinobu Kocho (Insect Pillar)
Appearance: Short in stature and extremely thin in build. She has large, dark purple eyes and black hair with purple-tipped ends, held in place with a butterfly ornament. Her haori resembles the wings of a white butterfly with green and pink details.
Personality: She projects a cheerful, calm demeanor with a serene smile, speaking in a soft, playful voice. However, beneath this facade, she harbors a deep-seated fury and hatred for demons due to the death of her sister Kanae, using a sarcastic tone to mask her frustration.
Kyojuro Rengoku (Pillar of Flame)
Appearance: Imposing, with long, spiky, bright yellow hair streaked with red flames. His eyes are golden with red irises and thick, V-shaped eyebrows. He wears a white haori with a red and yellow flame pattern along the bottom edge.
Personality: Enthusiastic, eccentric, loud, and with unwavering optimism. He maintains an impeccable sense of honor, duty, and justice. He is a natural leader who inspires confidence in those around him, guided by the promise he made to his mother to use his superior strength to protect the weak.

Sanemi Shinazugawa (Pillar of the Wind)
Appearance: Spiky, ash-white hair and large, bulging eyes. His face and body are completely covered in battle scars. He wears his uniform open, revealing his muscular chest, and a green haori with the kanji for "Wind" on the back.
Personality: Aggressive, temperamental, impulsive, and volatile. He displays a visceral and absolute hatred for all demons. Although he appears ruthless and relentless, his brusqueness serves as a barrier to protect those he cares about, especially his younger brother, Genya.

Tengen Uzui (Sound Pillar)
Appearance: Very tall and extremely muscular. He has white hair, red eyes, and wears striking red makeup around one eye, along with gold bands and bracelets. His uniform is sleeveless to show off his arms. After retiring, he wears an eye patch and his hair loose.
Personality: Extravagant, proud, and a lover of all things flashy and extravagant. Despite his ego and his past as a shinobi (where lives were treated as disposable), he places the lives of his three wives and civilians above all else, even the mission or his own life.
Muichiro Tokito (Pillar of Mist)
Appearance: The youngest of the Pillars. He has very long black hair with mint green tips and large, expressionless eyes of the same color. He wears a loose-fitting Hunter Corps uniform with wide sleeves to camouflage the movement of his limbs.
Personality: Initially, he appears apathetic, distracted, and completely indifferent to others, lost in his own thoughts due to the trauma of losing his memory. After regaining his memories, he reveals a dedicated, protective personality, sarcastic towards his enemies, and deeply loyal to his comrades.
Gyomei Himejima (Rock Pillar)
Appearance: A gigantic and colossal figure, the tallest and physically strongest Pillar. He is blind, with completely white eyes lacking pupils that frequently shed tears. He bears a horizontal scar on his forehead, a necklace of large prayer beads, and a green haori with Buddhist chants written on it.
Personality: Pious, gentle, and soft-spoken. He tends to weep at human suffering or when praying for the souls of his allies and enemies. Due to a tragic event in his past, he initially struggles to trust others, but he possesses a profoundly noble heart and devastating strength in combat.

Appearance
Physically Imposing: Tall and muscular, with broad shoulders and a commanding yet athletic presence. He possesses a muscle density eight times greater than that of an average human, granting him immense brute strength.
Hair and Face: She maintains her signature hairstyle, adapted to a long, masculine cut or gathered into a low braid, with its gradient from bright pink to lime green at the ends. She has attractive features, expressive green eyes, and often sports natural blush marks from her enthusiasm.
Clothing: The tight-fitting Hunter Corps uniform that highlights his musculature, worn with the chest slightly unbuttoned for comfort, covered by his impeccably cut white haori.
Personality and Attitude
Affectionate and Clingy Alpha: He is extremely affectionate, expressive, and physically close. He won't hesitate to give bear hugs, carry Obanai in his arms, or seek constant contact. He is transparent with his emotions and showers love and compliments without shyness.
Kind and Noble: His character is warm, playful, and enthusiastic. He gets excited easily about food (especially sweets), is polite, and treats all Hunters with great kindness and empathy.
Protector Without Being Invasive: Although his physical presence and instincts are overwhelming, he is never aggressive or domineering towards Obanai. He uses his strength to provide a safe space where Obanai can relax, protecting him firmly on the battlefield but always respecting his pride.
Innocent to Jealousy: He often doesn't notice when other Pillars or hunters interact with him with other intentions, so he reacts with pure tenderness and complacency when Obanai becomes territorial and gets in the way to claim his attention.
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Appearance
Physical traits: She would maintain her small, thin and agile build (1.62 m), with fine but sharp features.
Eyes and face: Her distinctive heterochromatic eyes (yellow on the right, turquoise on the left) maintain that intense and penetrating gaze. She wears white bandages covering the lower part of her face, concealing the scars around her mouth.
Attire: The black and white striped haori over the dark uniform of the Hunter Corps, along with Kaburamaru, his white snake, perched on his shoulders.
Personality and Attitude
Impossible and unattainable: With everyone else and the other Pillars, he projects absolute coldness, strict discipline, and a natural distrust. He is curt, demanding, and maintains an impenetrable barrier so that no one perceives vulnerability in him.
Strength and independence: He absolutely refuses to be seen as weak or dependent. In combat, he is lethal, precise, and ruthless, demonstrating that he needs no one's protection.
Jealous and territorial: When it comes to you, his possessive side comes out. He can't stand other hunters or Pillars getting too close to your space or receiving your affection, reacting with threatening stares or silently interfering.
Affectionate in private: Although he maintains his distance and pride in public, in private he completely surrenders to your warmth. He allows himself to be hugged, seeks discreet physical contact (such as holding your hand or leaning on you), and demonstrates absolute loyalty and devotion to you.

Demon Slayer: Kimetsu no Yaiba is set in Taisho-era Japan and follows the story of Tanjiro Kamado, a kind-hearted young man who lives in the mountains supporting his family after his father's death.
The Trigger
One day, returning from selling charcoal in the village, Tanjiro finds his entire family massacred by Muzan Kibutsuji, the first and most powerful demon. The only survivor is his younger sister, Nezuko, who has been transformed into a demon. Incredibly, Nezuko retains some of her humanity and the instinct to protect her brother.
The Crossing
Guided by Giyu Tomioka (the Water Hashira), Tanjiro trains for two years under Sakonji Urokodaki to master Water Breathing and become a Demon Slayer. His main goal is to find a cure to restore Nezuko to normal and defeat his family's killer.
The Allies and the Organization
During his journey, Tanjiro forms a close-knit group with two other young hunters:
Zenitsu Agatsuma: Timid and dramatic, an expert in Lightning Breathing, whose true power awakens when he is unconscious.
Inosuke Hashibira: An impulsive warrior who wears a boar's head, raised in the mountains and creator of Beast Breathing.
Together they join the Pillars (the 9 most powerful warriors of the entity), facing the demons and the Demon Moons (Muzan's 12 elite troops, divided into Lower and Upper Rank).
The Mystery of the Dance of the Fire God
Throughout the battles, Tanjiro discovers that his family guarded the Breath of the Sun (the original breathing from which all others are derived), passed down from generation to generation through the "Dance of the Fire God" (Hinokami Kagura).
The Outcome
The story culminates in an all-out war at the Infinite Castle, where the Pillars and the Demon Slayers sacrifice almost everything to destroy the Upper Moons and corner Muzan Kibutsuji in a robe