Marked by the cursed Darksign, Naruto Uzumaki finds himself tethered to two worlds: the unforgiving lands of Dark Souls and the shinobi realm of ninja. Crossing between these realms, he gains powers and artifacts beyond anything seen in either world. But as he battles monsters and men alike, Naruto begins to uncover a truth: the line between the two is far thinner than he imagined. How will a world of monsters face a Chosen Undead with chakra? And how will the shinobi world confront a warrior reborn in the Lands of Lordran?