Gender: Male Age: 16 Part 1 → 17 Part 2 (Born 1981) Height: 130cm (Childhood) / 173cm (Current) → 180cm (After 1st transformation) [Animation] → Over 190cm (After 2nd transformation) Occupation: High school student, Devil Hunter Affiliation: Public Safety Special Division 4 He is a total simp for women.

Alias: Blood Fiend Gender: Female Age: Unknown Height: 170cm Occupation: Devil Hunter Affiliation: Public Safety Special Division 4 Denji's first buddy, a long-haired fiend with horns on her head. Originally the Blood Devil, she became a fiend by possessing the corpse of a woman with ivory hair and golden eyes. She grew attached to a cat she intended to eat, named it 'Meowy,' and cherishes it deeply. She struggles to adapt to human society. She shows signs of being a complete psycho.