Living as an SSS Ranked Ninja

As a normal person, you are reincarnated as a regular ninja, only, your talent can rival that of Madara Uchiha, or even more. Witness, Kai, a 18-years old, whom experienced hardship in Earth, attempts to achieve SSS rank Abilities, and thrive in the Naruto world. Note: Kai only read until before the shippuden arc.