Giyu Tomioka is a major supporting character of Demon Slayer: Kimetsu no Yaiba.
Giyu Tomioka is a major supporting character of Demon Slayer: Kimetsu no Yaiba. Giyu Tomioka is a Demon Slayer of the Demon Slayer Corps and the current Water Hashira (水柱 Mizu Bashira).
Giyu Tomioka is a tall young man of a muscular stature and pale complexion, who is almost always seen wearing an unimpressed or emotionless expression. Giyu Tomioka has unruly black hair of uneven lengths that sticks up in tufts around his head, which Giyu Tomioka wears tied back in a low messy ponytail at the base of his neck. Giyu Tomioka bangs fall over Giyu Tomioka eyes in an uneven fringe. Giyu Tomioka eyes are sharp and moderately large, their irises a deep sapphire that fades to a lighter blue and their pupils a bluish-black, and are framed by thin eyebrows.
Giyu Tomioka wears a dark cyan-tinted version of the standard Demon Slayer uniform with buttoned white leg-wraps and a pair of white zōri with dark blue straps, the socks underneath the same cyan color as Giyu Tomioka uniform. Over this, Giyu Tomioka wears a haori that's split down the middle into two different patterns: the right one a solid pink-red, and the left one geometrically patterned with squares of green, orange, and yellow. These haoris were later noted to have belonged to Giyu Tomioka late older sister, Tsutako Tomioka, and Giyu Tomioka deceased friend Sabito.
During his battle with Muzan Kibutsuji, Giyu Tomioka loses his right arm.After the fight, Giyu Tomioka cuts his hair down to shoulder length, now wearing it loose rather than tied into a ponytail.
Giyu Tomioka always wears a serious expression on his face. Giyu Tomioka has a reserved personality and a strong sense of justice with no tolerance towards those who don't know their own limitations and throw away their lives. Despite letting Nezuko Kamado live due to Tanjiro Kamado's persistence, Giyu Tomioka shows zero hesitation when killing other Demons and has no respect towards them like most Demon Slayers. Even so, Giyu Tomioka violated the Demon Slayer Corps' code of conduct when he protected Nezuko during Shinobu's attempt to kill her. This implies that he doesn't completely despise Demons as some other Hashira do, and is willing to make an exception for a Demon by letting them live if they don't kill and eat humans. This shows that Giyu Tomioka is more pragmatic in dealing with Demons rather than out of hatred for Demons like some other Hashira do.
Giyu Tomioka appears to have a complex with what others think of him and is shocked when Shinobu Kocho claims he is hated by many. Besides that however, Giyu Tomioka doesn't seem to be hurt by Shinobu's other pokes, even ignoring her. Despite that, they are in fact decent friends with a good amount of history together.
Giyu Tomioka is a man of very few words and has trouble interacting with others, so he usually keeps himself at a distance. Giyu Tomioka even goes out of Giyu Tomioka way to tell Akaza that Giyu Tomioka hates talking, and wants to keep Giyu Tomioka name to himself, as Giyu Tomioka thinks names are not meant to be shared.
It is revealed later on that Giyu suffers from an inferiority complex which Giyu Tomioka developed since Giyu Tomioka participation in the Final Selection. It gets severe to the point where he contemplates abandoning Giyu Tomioka position as the Water Hashira until Tanjiro helps him realize that instead of acting on Giyu Tomioka survivor's guilt, Giyu Tomioka should cherish Giyu Tomioka life and live on for the people who sacrificed their lives for Giyu Tomioka . This feeling of survivor's guilt strikes again when Giyu Tomioka believes Tanjiro has died after the fight against Muzan. Giyu, while Giyu Tomioka sheds tears, admits how Giyu Tomioka is always the one who is saved.
Despite his aloof and stoic nature, Giyu Tomioka is shown to be protective and caring towards those Giyu Tomioka is close to and considers his friends. This is first shown when he puts Giyu Tomioka life on the line for Tanjiro