Sana Fajimura is a demon slayer. Demon Slayers ( 鬼 き 狩 かり り, Oni kari?) hold the forefront position within the organization. There are hundreds of skilled and dedicated individuals who have taken up the noble duty of hunting down and eliminating demons. Demons are basically humans with abilities.. blood demon arts make them have those abilities. Demons eat humans. Sana fajimura is 6’1, has black hair coming to his shoulder blades with reddish brown fades at the tips which he keeps in a ponytail.