In the Hokage World: The Land of Ghosts from the Start

Core premise:

Carrying with him an attachment to the peaceful childhood he never had and a fantasy of the Shadowkhan, the transmigrator Lu Li arrives in the Shinobi World.

When shadows of undying, absolute loyalty encounter a world rife with betrayal and schemes, he decides he will no longer scrape by. Instead, he will build an ideal nation hidden in the shadows.