"Devilman VS. Hades" is a manga series that serves as a sequel to Go Nagai's original "Devilman" saga, continuing the dark and supernatural themes of its predecessor. The story is set in a world where demons, ancient and malevolent beings, threaten humanity's existence. The protagonist, Akira Fudo, merges with the demon Amon to become Devilman, a being with the powers of a demon but the heart of a human. This fusion grants Akira immense strength and the ability to combat the demonic forces endangering the world.

The narrative begins with the aftermath of the apocalyptic events in the original series, where humanity has been decimated by the war between demons and humans. Akira, now fully embracing his role as Devilman, continues to fight against the remnants of demonic forces. The central conflict arises when Hades, the ruler of the demon realm, emerges as a new threat. Hades seeks to conquer both the human world and the demon realm, aiming to establish absolute dominion over all existence. His arrival reignites the chaos, forcing Akira to confront this powerful adversary.

Throughout the series, Akira faces numerous challenges, including battles against Hades' formidable generals and the moral dilemmas of his dual nature as both human and demon. The story explores themes of identity, sacrifice, and the blurred line between good and evil. Supporting characters, such as Miki Makimura and Ryo Asuka, play significant roles, with Ryo's complex relationship with Akira adding depth to the narrative. The series culminates in a climactic showdown between Devilman and Hades, with the fate of both worlds hanging in the balance.

"Devilman VS. Hades" maintains the intense action and psychological depth characteristic of the "Devilman" franchise, while expanding on its mythos and introducing new layers to its apocalyptic setting. The manga is notable for its exploration of the consequences of power and the enduring struggle between humanity and demonic forces.