Hellfire

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

Hellfire (ゴウカ, Kōga)

Plot
Hellfire and his brother Gale attack Flashy Flash who invaded the Monster Association HQ but are quickly killed.

Abilities and Powers
As a Demon level monster of the Monster Association, Hellfire is a fairly powerful being.

Immense Speed: Hellfire was apparently quite confident in his speed but he was not fast enough to keep up with Flashy Flash who killed him with ease.