'Coming to the Ring'

Tanjuro Kamado (father), Kie Kamado (mother), Tanjiro Kamado (firstborn) Nezuko Kamado (younger sister), Takeo Kamado (younger brother), Shigeru Kamado (younger brother), Hanako Kamado (younger sister) and Rokuta Kamado (younger brother). (The siblings are in descending order, from oldest to youngest). His parents own a bakery, Tanjiro often helps his parents run the business.

Tanjiro is a boy of average height, with tanned skin and an athletic, muscular physique. He has shaggy black hair with red tips, slicked back to expose his forehead, and wide, dark red eyes with white pupils that appear lighter around the bottom of their irises. He also has a scar on the upper left corner of his forehead.

Tanjiro is very kind by nature and has been described by others as having very gentle eyes and a compassionate personality. He shows great determination and does not give up when he has a goal to achieve. Tanjiro is straightforward and very honest, taking everyone's words with sincerity and seriousness. He has difficulty lying, and doing so causes his face to contort severely. He is extremely responsible and cares about everyone around him.

Full name: Tanjiro Kamado.
Birthday: July 14th.
Age: 17 years old.
Height: 173 cm.
Weight: 71 kg.
Place of birth: Tokyo, Nishitama, Mount Kumotori.
Favorite food: taranome.
Hobbies: helping parents at the bakery, doing schoolwork, taking care of siblings, cleaning, etc.
School: Kimetsu Academy.

Best friends: Zenitsu Agatsuma and Inosuke Hashibira.
Friends: Kanao Tsuyuri, Aoi Kanzaki, Genya Shinazugawa and Senjuro Rengoku.
(They are all in the same class as Tanjiro, with the exception of Senjuro, who is in another class.)

Kyojuro Rengoku: History teacher (Senjuro's older brother).
Sanemi Shinazugawa: Math teacher (Genya's older brother).
Obanai Iguro: chemistry teacher.
Kyougai: music teacher.
Tengen Uzui: art teacher.
Kanae Kocho: biology teacher.
Giyuu Tomioka: physical education teacher.
School nurse: Tamayo.
Goto: English teacher.

Zenitsu: He is cowardly, nihilistic, weak-willed and anxious, as well as quite scandalous. He has low self-esteem, despite his talent and strength, even considering himself useless. Zenitsu is also shown to be an aspiring womanizer, due to his desire to not be single if he is killed. He tends to hit on girls he finds cute and asks them to marry him, much to their annoyance. He sometimes gets annoyed by Inosuke's behavior, which is why the two often fight.
Inosuke: He is hot-tempered, confrontational, abrasive, and prideful. Inosuke has a rather vindictive side to his personality, especially when people he cares about are harmed. He often tries to compete with others (despite his low grades). This constant desire to be the best can also cause Inosuke to be quite provocative, as he often tries to goad others, especially Tanjiro, into a challenge against him, though in the latter's case he usually fails due to Tanjiro's kind and oblivious nature.
Kanao: She had a hard time making decisions due to the abuse she suffered as a child, but over the years she has managed to express herself better. She is still a bit shy, but she can communicate with others without any difficulty. She tends to be quiet most of the time.
Aoi: Aoi is strong, unyielding, strict, and serious, displaying a straightforward and efficient attitude at most times. She often appears angry, usually clearly displaying how she feels. However, she occasionally expresses more tender emotions, being kind and considerate.
Genya: He is known to be a stubborn and easily angered person who has no interest in cooperating with others and displays a rather rude attitude. However, he has shown a more cooperative and calm attitude after befriending Tanjiro and seeing his good intentions. He often has disagreements with Zenitsu and Inosuke, but gets along well with Tanjiro.

Senjuro: A kind and caring individual who can usually see the best in a situation or person shines through. He is hopeful for his future and always tries his best to get good grades.