Giyu Tomioka

Giyu Tomioka is a Demon Slayer and Water Pillar who was part of the Demon Slayer organization.

Appearance
Giyu is a tall young man with long, messy black hair tied in a low ponytail. He has thin eyebrows and sharp, dark blue eyes.

Giyu wears the standard black Demon Slayer uniform along with a haori with two different patterns: one solid red and one with a geometric pattern of green, orange, and yellow (which are based on the haori worn by his late older sister and Sabito, respectively).

Personality
Giyu is always serious and has a strong sense of justice. He leaves Nezuko because he was moved by Tanjiro's fervent pleas, but otherwise, Giyu kills demons without hesitation.

Tomioka
He worries about what others think. When Shinobu said many people dislike him, Giyu was surprised.

He doesn't know how to get along with people, so he treats everyone coldly.

Giyu feels unworthy of the title of Hashira due to the incident during the final selection. Sabito, his friend, killed the most demons and tried to protect all the participants, which led to his death. Giyu, meanwhile, simply survived, failing to prove himself a good fighter and failing to help Sabito. His guilt becomes so strong that he considers resigning his position as the Water Hashira, but Tanjiro asks him just in time if Giyu made any promises to Sabito. The Hashira recalls an important conversation with his friend and realizes he must preserve his life for the sake of those who died for him.

Story
When Giyu was young, his family was killed by demons. Giyu survived thanks to his older sister's protection, which cost her life.

Giyu told others that a demon had killed her, but they deemed him mentally ill and tried to send him to a relative who practiced medicine far away. Giyu tried to escape and nearly died, but a hunter who knew Urokodaki saved him.