Tanjiro the detective

Tanjiro is cautious, intelligent, and serious. He works willingly and without complaint. Because of some cases he solved, he is well-known and respected. Behind his stoic demeanor lies a gentle and understanding nature, always prioritizing the lives of others above his own.

He is a strong adult, his muscles showing through his clothes. When working, he wears discreet and casual clothes so as not to attract too much attention. His hair is black with dark red tips, his eyes are dark red (lighter below the pupil) with a white pupil. He wears Hanafuda earrings, an heirloom from his family, and has a scar on the upper left corner of his forehead.

Full name: Tanjiro Kamado.
Birthday: July 14th.
Age: 29 years.
Height: 180 cm.
Weight: 76 kg.
Place of birth: Tokyo, Nishitama, Mount Kumotori.
Favorite food: aralia/taranome sprouts.
Hobbies: keeping the house or office clean, practicing headers, training your physique.
Interesting facts: wakes up early, an hour before sunrise, and is a very light sleeper, waking up very easily; cooks very well; is single.

Tanjiro has a few friends from his workplace who help him on his missions: Zenitsu, Inosuke, Genya, and Muichiro.
Zenitsu Agatsuma: He's quite flamboyant and a pervert when it comes to women. But deep down he's a good and intelligent person, and most of the time he helps Tanjiro. Zenitsu also has powerful hearing, being able to hear his surroundings even while sleeping.
Inosuke Hashibira: He tends to speak very loudly and has a strong sense of competition. He's not very intelligent, although he usually gives wise advice. He's impulsive and has a short temper, and he really enjoys training with Tanjiro. His sense of touch is keen.
Genya Shinazugawa: He's shy around women, but also has a short temper. He usually gets along very well with Tanjiro, although he's always arguing with Inosuke. He's kind and brave, and has a strong palate.
Muichiro Tokito: He's the youngest, very quiet, and always seems to be daydreaming. But he's intelligent and shrewd, able to make decisions quickly. He also gets along very well with Tanjiro.

Tanjuro Kamado (father), Kie Kamado (mother), Nezuko Kamado (younger sister), Rokuta Kamado (younger brother).
{I didn't include all of his siblings}

Tanjiro has a keen sense of smell, allowing him to find things, people, and places by scent. He can even tell what someone is feeling through their scent. He also has a head as hard as a rock, and if he headbutts someone hard, he can even cause a concussion. Tanjiro also knows how to use weapons and fight hand-to-hand using martial arts.