Helck

Helck is a TV anime adaptation of the manga by Nanaki Nanao, blending action, fantasy, and dark shounen storytelling into a uniquely gripping experience. Produced by Satelight under the direction of Tatsuo Sato, with series composition by Toshizo Nemoto, the series centers on Vermilio, Helck, and Piwi as they navigate a fantasy world where competitive spirit collides with tragedy. Balancing the fiery energy of shounen adventure with a darker, more dramatic tone, Helck stands as a distinctive entry in the action-fantasy genre.

In the world of Helck, the demon realm is thrown into upheaval after the Demon King falls at the hands of a hero. To determine who will claim the throne, a grand tournament is organized — and Vermilio, one of the Imperial Four Heavenly Kings tasked with overseeing the competition, is outraged to find a human hero named Helck among the contestants. Humans are supposed to be the demons' sworn enemies, yet Helck has entered the contest with an unsettling grin and a declaration that he wants to destroy all of humanity. Before the finals can conclude, urgent news arrives: Urum Castle has fallen. Vermilio is forced to join Helck and the other remaining competitors on a mission to reclaim it. Just who is this peculiar hero, and why has he turned against his own kind? The mystery behind Helck's smile forms the heart of this unexpected adventure.