(W/A) Nanaki Nanao After the Demon Lord is slain at the hands of a lone human warrior, humans rejoice over the end of his reign of terror. But an intense tournament gathering powerful fighters who hope to be crowned the next Demon Lord draws in the unlikeliest of contestants-Helck, who claims to hate humans but is a human himself! How will Helck change the course of the war between demons and humankind? For teen audiences.

(W/A) Nanaki Nanao Helck sets out with a group of demonkin led by the disguised Vermilio to defeat a mysterious group of winged soldiers and reclaim Castle Urum. However, before they can finish the fight, Helck and Vermilio are transported to a strange place. Now, the two must figure out how to survive in this new environment-all while learning to coexist! For teen audiences.

(W/A) Nanaki Nanao With Vermilio and Helck gone, Azudra of the Four Elite Lords steps in to defend Castle Urum from the seemingly invincible winged soldiers. Meanwhile, Vermilio and Helck meet a witch who just might be the key to getting back to the Demon Realm. For teen audiences.

(W/A) Nanaki Nanao Crossing a ruined wasteland, Helck and Vermilio are attacked by the Warrior of Darkness! Helck displays his true heroic power as he clashes with the strongest foe he's faced yet. But Helck's overwhelming strength causes Vermilio to doubt him once again, so he reveals his past-and the reason he wants to destroy all humans. For teen audiences.

(W/A) Nanaki Nanao Helck continues to lay bare the harrowing tale of how he became the mighty-and disgraced-hero he is today. In the past, after his brother, Cless, sustained near-fatal injuries during an encounter with the Demon Lord, Helck set out to the Demon Lord's castle in his stead. But what awaited him was a shocking revelation about demonkind that no human could ever comprehend. For teen audiences.

(W/A/CA) Nanaki Nanao Once Helck finishes the unbelievable tale of his loss and betrayal, he pleads for Vermilio to accept his one request. To return his trust, Vermilio reveals her true identity-a secret that she had believed would keep the Empire safe. Meanwhile, the new Demon Lord's castle is under siege by a group of awakened human soldiers!