Naraku no Adu

Adu appears to be an ordinary human, but beneath his mortal exterior lies one of the twelve most powerful Demon Kings in existence. Bound by a solemn pact with an angel, he has been granted the ability to materialize in the real world within a human body. However, this divine agreement comes with a strict condition: he must hunt down and destroy the remaining eleven Demon Kings who threaten humanity. While his status as a supreme demon suggests this mission should be straightforward, taking on a human form carries a severe consequence. As Adu grows more accustomed to his physical vessel and becomes increasingly human-like, his demonic essence steadily fades, stripping away the very power he needs to complete his objective. Now caught between two worlds, Adu embarks on a perilous quest to eradicate his former peers and protect the innocent people around him. Yet his greatest challenge may not be the battles ahead, but the constant need to conceal his dark origins from the very humans he has sworn to defend.