Devil Long Hair (魔ロン毛, Maronke) is a Mysterious Being of the Monster Association.


Devil Long Hair resembles a human with very long hair.


Devil Long Hair is obsessed with his hair. Speaking in idioms that he modifies to always involve hair, he carries himself with an air of aloof vagueness.

He is particularly calm, and was seen speaking to lesser monsters with no difficulty restraining himself from violence, whereas other high-level monsters often began infighting or cannibalizing each-other during idle moments. He is also rather prideful, seemingly surrounding himself with lesser, more psychophantic monsters.


Monster Association ArcEdit

At the Monster Association base, he encounters Pureblood and states he became a monster by grooming his hair, giving it magical properties.

Webcomic notice The following section contains Webcomic spoilers. You have been warned, manga-only readers.

Later, Devil Long Hair shows up against Atomic Samurai's three disciples. Despite injuring Okamaitachi, he was still defeated by the trio when they worked together to cut off all his hair. 

Abilities & PowersEdit

Being a Demon level monster Devil Long Hair is a very powerful monster. He easily injured an A-Class Ranker and needed three of them to take him down. Even the heroes themselves barely managed to defeat him.

Hair Manipulation: Devil Long Hair can manipulate his hair to lengthen and move as he likes. They may have supernatural properties, as they were able to capture air blades somehow.

Major BattlesEdit

Devil Long Hair vs Iaian, Bushidrill and Okamaitachi.