Sumihiko Kamado

Sumihiko Kamado is a teenage student living in the 21st century. He is the great-great-grandson of Tanjiro Kamado and Kanao Tsuyuri.

Appearance
Sumihiko is a young man with short, ruffled black hair with burgundy tips, that he wears combed back, a few stray tufts falling down over his forehead. He has wide, dark red eyes with white pupils that appear lighter around the lower section of his irises. Overall, his appearance bears a strong resemblance to that of his ancestor Tanjiro Kamado.

Sumihiko wears his high school's uniform, consisting of a pale blue dress shirt with a sleeveless, white v-neck cardigan worn over the top, and plain black pants. He wears a black necktie around his neck, as well as a pair of dark brown dress shoes.

Personality
Sumihiko takes after Tanjiro in terms of personality as well as appearance, as he too is kind and cheerful by nature, smiling and talking happily to his friend Tojuro as they run together. He also appears to be rather sleepy, not waking up when Kanata tried to get him up for school and implying he's slept in and been late numerous times, as well as being shown to be yawning on the cover page. He appears to be rather athletic, countering his brother's noted skill in more academic subjects, as he was seen jumping down and off tall buildings and swinging himself from stairwells and railings on his run to school.

Despite being somewhat clumsy, Sumihiko has respect for others, as, when he runs past a pair of older men playing shogi and a group of young girls, he turns back with an apologetic expression and says he is sorry for any disruption he had caused.

Chapter 205
As Sumihiko's brother, Kanata, gets ready to leave for school, he tells a dozing Sumihiko to wake up for the 28th time, to which Sumihiko replies that he is up as Kanata leaves the house without him.

Sometime later, Sumihiko wakes up, realizing he is late and asking himself why nobody woke him up. After getting dressed, Sumihiko leaves the apartment through his nine-storey-up bedroom window, calling out to his mother that he is leaving to as he jumps down onto the balcony below and swings himself onto the roof of the neighboring building. He crosses the roof as he remarks to himself that he wants the perfect attendance award, then climbs down the other side of the building via the stairwells and lands on the ground.

Sumihiko runs past a pair of old men sitting and playing shogi in a traditional Japanese-style house and the reincarnation of Jigoro Kuwajima asks what's with him every morning. Sumihiko apologizes to them as the man mutters that he's a hooligan, and continues to run down the street, passing three young girls who laugh and exclaim that he's the "running man." Embarrassed, he blushes at the nickname as he passes a police patrol car manned by two officers, Sanehiro Shinazugawa and the reincarnation of Genya Shinazugawa. Sumihiko flips himself over the hood of the car, muttering an apology to the officers, then sprints past a group of kids consisting of Giichi Tomioka and the reincarnation of Sabito and Makomo who are exchanging kitsune mask-like collectible toys.

Now close to the school's entrance, Sumihiko's friend Tojuro Rengoku catches up with him and they run together towards the school. After they greet each other, Sumihiko remarks that it's unusual for Tojuro to be late, to which the latter responds that he got caught up training until 4 A.M. and was unable to hear anything until his father whacked him. The two policemen from earlier approach the pair in their patrol car, asking them to stop, but Tojuro ignores them and continues the conversation, telling Sumihiko that he should join a sports club at school. Sumihiko replies that it'd cut into his sleep, and Tojuro laughs and says that he should at least try something because he'd be awesome at it. Sumihiko says he could never hold a candle to Tojuro in terms of sport, as the officers continue to shout at the pair to stop.

A teacher who resembles Murata shouts to close the school gate despite it being three minutes too early in an attempt to stop Sumihiko's offences, but the two just hoist themselves over the gate, smiling at each other that they're glad to have made it to school in time.

Kanata Kamado
Kanata is Sumihiko's older brother. Though they love and care for each other, Kanata has been shown to disapprove of Sumihiko's habit of sleeping in, even telling him 28 separate times to wake up before giving up and leaving for school.

Tojuro Rengoku
Tojuro is Sumihiko's (presumably closest) friend. The two of them caught up with each other and sparked a conversation together whilst being chased by the two policemen with their patrol car and in a hurry due to that they were late for school.

Sanehiro Shinazugawa
Though Sumihiko seems to be unaware, he and the police officer Sanehiro Shinazugawa seem to be on antagonistic terms, as the latter had notably received seven reports about the former's antics.

Aoba Hashibira
Sumihiko met Aoba after the latter had just gotten fired from his job and was lamenting his unemployment at the same park he was in. They ended up playing badminton together and became friends. Unknown to either of them, their ancestors too shared a friendship.

Abilities
Overall Abilities: As a regular human, Sumihiko hasn't been shown to possess any form of unnatural power. He is, however, shown to possess a degree of skill in athletics, acrobatics, and parkour, along with a prodigious physical condition. His skills allow him to easily jump from building to building, descend multiple floors by climbing down them with careful maneuvers, perform acrobatic movements sufficient pass through a moving police car, and easily jump over his school's closing gate.

Trivia

 * Both Sumihiko and Kanata can perform the ceremonial version of the Hinokami Kagura. They do so every year at a shrine managed by the Ubuyashiki clan, but don't seem to think of it as a sword form that was once used to fight demons.
 * Sumihiko's name is derived from that of Sumiyoshi Kamado, one of Tanjiro Kamado's ancestors, as they share the exact same Kun'yomi reading "sumi", which is the same character as the "tan" in Tanjiro and Tanjuro Kamado's names.
 * He once got scolded by the police and his parents for four hours after he took his dangerous way to school, later crying at the park on his way home.
 * His dream is to work in a zoo, as he likes slow lorises.
 * Sumihiko may have inherited his sleepiness from his ancestor Suyako, who tended to fall asleep all the time, a characteristic that was also passed down to Nezuko when she became a demon.

Quotes

 * (About his family) "I wonder what my great-great-grandfather and great-great-grandmother were like. I envy anyone who knew them. What foods did they like? What colors? I like to hear those things about people. A human life is like a story. And my life is my own story with me as the main character. Because even if they're a hundred, two hundred, or even a thousand years ago, these are only stories about people in the end. And I'm sure that my family, as well as the people I don't know, all have lots of their own little stories that only they know about."

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