The Demon-Slaying Madman—reborn as a demon.

In a final battle that claimed them both, the mightiest of heroes, “Gelong”, perished alongside the Demon Lord. Five years later, he is reborn—only to awaken in the heart of his enemies’ domain, his soul now inhabiting the frail body of a lowly demon. But an unforeseen power stirs within this feeble vessel, ignited by his very soul: the ancient evolutionary might of the Serpent God. Gelong, a man once renowned for a ferocity that surpassed the demons themselves—what seas of blood will he now ignite with a truly demonic body?