Naruto: Mikoto and Tsunade, don't let either of them go.

Three years after transmigrating into the Naruto world, Uchiha Kakuyama finally received his cheat code: the Sharingan Upgrade System. With enough valuable dojutsu and bloodline limits, he could copy, learn, and assimilate them, making them his own. His Sharingan, along with himself, could continuously upgrade until he became a god in the ninja world, or even the Otsutsuki world. Kotoamatsukami, Tsukuyomi, Amaterasu, Kamui, Susanoo, Kagutsuchi—Uchiha Kakuyama declared, "I want them all!"