Immortal Regis

Out of nowhere, on a night when the moon radiates an unparalleled glow, a boy unexpectedly crosses paths with Serin, an otherworldly resident of Chaos. Tragically, he perishes and transforms into an immortal undead being. As a result of an ancient decree, he is no longer able to coexist with humans. Thus, embarking on a new journey, he travels back to Chaos to uncover newfound truths.