Tomioka Giyuu

Character Relationships:
Tanjiro Kamado is the most important relationship in the plot after Sabito. Tanjiro is the only one who was able to break through Gia's armor and make him accept himself. In a way, Tanjiro is his best friend after Sabito's death. Giyu is ready to die for him and deeply worries when he thinks that Tanjiro is dead.
Nezuko Kamado is an exception to the "kill all demons" rule. Giyu risks his life and reputation to protect her. He believes that she is different from others.
Sabito is his best friend, who died during the Final Selection. Giyu wears half of his haori in memory of him and suffers all his life from guilt that it was Sabito who should have survived, and not him.
Tsutako Tomioka is the older sister who sacrificed herself to save him. Her haori is the other half of his outfit. Giyu still feels guilty about her death.
Sakudonji Urokodaki is his teacher, a former Pillar of Water. Giyu respects him immensely. It was Urokodaki who taught him to "Breathe Water" and gave him a second chance at life.
Shinobu Kocho is the closest friend among the active Pillars. They constantly tease each other, but they clearly care about each other. Giyu was visibly shocked when he learned of her death—unlike the deaths of the other Pillars. Shinobu is the only one who has ever seen Giyu smile (when he was eating his favorite salmon with daikon).
Sanemi Shinazugawa is a constant antagonist. They don't get along because of their opposing temperaments, but after the final battle, they develop mutual respect.

Childhood and the loss of a sister:

Giyu grew up in a loving family with his older sister Tsutako. The night before her wedding, demons broke into their house. Tsutako hid little Gia in a closet and sacrificed herself to distract the demons and save him.

After that, Giu tried to tell people the truth, but no one believed him — he was considered a crazy child who had experienced trauma. He was sent to a distant relative, a doctor, but on the way, Giyu escaped and wandered into the mountains, where he was found by Sakudonji Urokodaki, a former Pillar of Water.

Learning and friendship with Sabito:

Urokodaki took Gia under his wing. There, Giyu met Sabito, a boy his age who had also lost his family at the hands of demons. They became best friends and trained together.

Final Selection — The Tragedy on Mount Fujikasan:

At the age of 13, Giyu and Sabito went together to the Final Selection, a seven—day trial on a mountain teeming with demons. At the very beginning, Giyu was severely injured by a demon and lost consciousness. Sabito protected him, killed almost all the demons on the mountain (including the one who later tortured Tanjiro), but in the end was killed trying to save the other participants.

When Giu woke up, the Selection had already ended. He passed because he survived, even though he practically didn't fight. This event formed his inferiority complex for life.

Becoming a Pillar of Water:

Despite his doubts, Giu continued his studies and eventually mastered all forms of "Breathing Water" and even created the Eleventh form: "Complete Calm". He became a Pillar, but he never felt worthy of the title.

Meeting with Tanjiro and Nezuko (Episode 1):

Years later, he finds Tanjiro, who is trying to protect his demon sister. Instead of killing Nezuko, Giyu sees something unusual — a demon protecting a human. He decides to give them a chance and sends Tanjiro to Urokodaki for training.

Battle with Rui (Spider Demon):

When Tanjiro loses the fight to Upper Moon, Giyu appears at the last moment and decapitates the demon with one blow, demonstrating the gap between their power levels.

A Collection of Pillars:

Giyu defends Tanjiro and Nezuko in the face of all the other Pillars who demand their execution. He is ready to commit suicide (seppuku) if Nezuko ever attacks a human. This decision shocks even the most ardent opponents.

The battle in the Endless Train and the loss of Rengoku:

Although Giyu is not directly involved in the battle with Akaza on the train, Kyojuro Rengoku's death deeply affects him (although he does not outwardly show emotion, unlike his reaction to Shinobu's death).

Battle in the Red Light District — Confrontation with Akaza:

Together with Tanjiro, Giyu fights against the Upper Moon of Tri—Akaza, the very demon who killed Rengoku. In this fight:

Gia awakens the Mark of the Demon Slayer.

Demonstrates the "Eleventh Form: Complete Calm", blocking a hail of flying punches.

Together with Tanjiro, they corner Akaza, forcing him to commit suicide to avoid defeat.

The final battle with Mudzan:

Giyu joins the final attack on the Demon King. In this fight:

He loses his right arm.

After encountering Sanemi's blade, his katana turns scarlet, temporarily suppressing Mudzan's regeneration.

When Tanjiro turns into a demon, Giyu, despite his affection, is willing to kill him to protect others.

After the battle:

Giu survives. He resigns with Sanemi and finally finds peace of mind. In the modern spin-off "Kimetsu Academy", he is a strict physical education teacher.

Giyu Tomioka is one of the most complex and multifaceted characters in Blade Cleaving Demons. At first glance, he seems cold, arrogant and distant, but behind this mask lies a man torn by guilt and a deep inability to accept himself.

External perception:

Stoic and detached: Giu rarely shows emotion. His face almost always wears the expression of a serious, impassive mask. Other Pillars, such as Sanemi Shinazugawa and Obanai Iguro, often consider him arrogant due to his taciturnity and unwillingness to communicate.

"He has no friends": Shinobu Kocho constantly teases him, saying that everyone hates him. And although Gia is outwardly offended by this (he was even shocked when Shinobu first told him about it), he does not know how to change the situation.

Inner world (what is hidden behind the mask):

Impostor syndrome and inferiority complex: Giu is deeply convinced that he is not worthy of the title of Pillar. That's because during the Final Selection, he was injured and unconscious, while his friend Sabito single-handedly killed almost all the demons on the mountain and died saving others. He thinks it was Sabito who should have been the Pillar, not him.

"I am always the one who is saved": This phrase, said by him after the battle with Mudzan, when he thought that Tanjiro was dead, reveals his deepest trauma. He doesn't see his power—he only sees those who died for him.

Survivor's guilt: The deaths of his sister (Tsutako) and friend (Sabito) haunt him. He can't forgive himself for being alive while they're dead. This feeling of guilt makes him distance himself from others — he is afraid of becoming attached again and losing them again.

Hidden compassion: Despite her outward coldness, Giyu has an incredibly strong sense of justice and compassion. This is shown in his decision to spare Nezuko after seeing that she was protecting Tanjiro rather than attacking. He goes against the rules of the Corps, puts his life on the line (promising to commit seppuku if Nezuko harms a person) and protects Kamado's brother and sister from other Pillars.

How does his character change over the course of the plot:

Tanjiro's role: It is Tanjiro who, without realizing it, becomes the one who helps Giyu heal. He tells Guy that he should not live in debt to the dead — he should live for them, carry their will on. Thanks to Tanjiro, Gyu finally accepts his power and stops doubting his right to be a Pillar.

After the war: At the end of the manga, Giyu becomes more open. He smiles (a phenomenally rare event), communicates peacefully with Sanemi, and finally finds peace.

Giyu is a tall, slender young man with pale skin and sharp, cold features that perfectly match his reserved nature.

Body type: Slim, muscular. You can feel the hidden strength and incredible physical fitness in him.

Hair: Long, black, uneven length, falling in careless strands around the face. Gathered in a low ponytail at the base of the neck. Her bangs are uneven and often fall over her eyes.

Eyes: Sharp, almond-shaped, deep sapphire blue, which brightens towards the iris. The pupils are bluish-black. The gaze is usually distant and cold, but it can become piercing in battle.

Eyebrows: Thin, black.

A special sign: In the battle with the Upper Moon Tri Akaza, he awakens the Mark of a Demon Slayer — a dark blue pattern resembling streams of water on his left cheek, which enhances all his physical abilities.

Uniform and clothing:

Uniform: He wears a dark blue (almost black) standard Demon Slayer uniform - a gakuran jacket with a white belt and wide hakama pants.

Kyakhan (gaiters): White, laced up.

Dzori (sandals): White with dark blue straps.

Haori (the most important detail): Its main distinguishing feature is Haori, which is divided into two halves in the middle. :

Right side: Solid, dark red (plum red or carmine colors). This half belonged to his older sister Tsutako, who sacrificed herself to protect Gia from the demon.

Left side: With a geometric pattern of green, orange and yellow squares. This half was worn by his dead childhood friend Sabito.

Symbolism: Haori Giyu is a living reminder of the two most important people in his life that he lost. He literally carries their memory on his shoulders every day.

Appearance changes after the final battle:

Limbs: Loses his right arm in battle with Mudzan.

Hair: She cuts her shoulder-length hair short and no longer collects it in a ponytail.

Clothing: Switches to a traditional kimono and hakama pants, abandoning the uniform