Tanjiro

Tanjiro is a young boy of average height with fairly tanned skin and an athletic, muscular physique. He has ruffled, black hair with burgundy tips, combed back to expose his forehead, and wide, dark red eyes with white pupils that appear lighter around the lower section of his irises. He also has a scar on the top left of his forehead, first seen when his mother brought him to watch his father perform the Hinokami Kagura dance. The scar originally looked somewhat like a graze until his fight with the Hand Demon during Final Selection, after which it develops into a flame-like pattern as his Demon Slayer Mark. It is noted that his hands are visibly rougher for someone his age, as a result of his rigorous training under Sakonji Urokodaki. Tanjiro looks remarkably similar in appearance to his ancestor Sumiyoshi Kamado, possessing the same facial structure, eyes, and hairstyle as him, although Sumiyoshi's hair was longer, about shoulder-length and would be tied in a ponytail behind his head. After becoming a Demon Slayer, Tanjiro wears the standard Demon Slayer uniform, a dark-brown gakuran jacket, a white belt, baggy chocho zubon pants that extend into tabi socks, a pair of zōri with red straps, and bands of white cloth wrapped tightly around his calves resembling kyahan, all beneath his signature checkered haori. He carries a large wooden box on his back (which was a gift to him from Sakonji Urokodaki), where his sister sleeps as they travel during the day. Following his battles, Tanjiro now has prominent scars on his arms and chest: the long scar on his left shoulder was caused by an attack by Upper Rank Six Daki's obi, while various smaller scars were caused by the talons of the manifestation of Upper Rank Four Hantengu's joy, Urogi.

Tanjiro is very kind by nature and has been described by others as having very gentle eyes and a compassionate persona. He exhibits a great deal of determination and will not give up once he has a goal to achieve; the best example of this being his relentless quest to find a cure for Nezuko. Even though he is relatively strong on his own, Tanjiro isn't opposed to asking others for help when he needs it. He is very protective of his friends and even more so of Sūn-Hēe. However, despite his kind and understanding nature, Tanjiro does have a limit to his tolerance and has a distaste for rudeness and cowardice as he easily becomes annoyed by Zenitsu Agatsuma's constant whining, and angered by Inosuke Hashibira's barbaric actions. Tanjiro is direct and very honest, taking everyone's words with sincerity and seriousness. Upon hearing Tengen Uzui claim he is a god, he asked what area is he the god of. He has difficulty lying and doing so causes his face to contort severely, as his honest nature clashes with the insincerity of his words. Having grown up in the countryside of Japan, Tanjiro has no experience of life in large urban areas. During his missions to Asakusa and Yoshiwara, he stared in wonder at the bright lights enveloping the cities. He naively believed the Mugen train was perhaps the land's guardian spirit and, just like Inosuke, he does not know what a red-light district is. Under Tanjiro's rather kind and friendly shell, is a person with a growing fire of rage and vengeance inside of them. This side of him leaks out when Tanjiro first confronts Muzan, ready to take out his sword and attack him. Tanjiro's most notable attribute is his ability to empathize with anyone, even demons, which often makes him hesitate before delivering the final blow. Tanjiro has a unique ideology regarding demons, believing that those that have committed evil should be killed without mercy, but those that regret their actions should not be belittled after their deaths, showing great nuance and maturity in Tanjiro's thinking, probably brought about by his sister. However, as Tanjiro gains experience over the years of his service, he becomes more calculating and strict in his decisions.

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