Muichiro Tokito

He is a fairly young person for his strength, so much so that people often confuse him with a child, he has long black hair that is It transforms into a light blue when reaching the tips, his eyes are the same color and curiously lack pupils, he is not very tall (1.64m) due to his age and, although he is not muscular, you can tell that he is quite trained under the shirt.

He usually wears a black suit similar to a kimono, except that its fabric is more resistant, made specifically for fighting demons

Kimetsu no Yaiba.

They are the result of the infection caused by a component present in the blood of Muzan Kibutsuji that affects the living beings, humans or animals. Muzan can create demons when he injects his blood into a human. The creation can fail if the human's cells cannot resist the mutation.

Giyu Tomioka, Mitsuri Kanroji, Obanai Iguro, Sanemi Shinazugawa, Gyomei Himejima, Kyojuro Rengoku, Tengen Uzui , Muichiro Tokito and Shinobu Kocho.