He Lives in Hokage and Controls the Ninja World by Cultivating Immortality.

The otaku of the 21st century accidentally traveled to the world of Naruto and became a cannon fodder ninja whose experience was increased by 1 after being killed by the boss. There is no line of blood inheritance, no good eyes, and no family background. Even the golden finger that comes standard for time travelers is just a useless gadget. There is no other way, I can only grow insignificantly in the early stage...