Re: /Naruto 604\
Tobito was brainwashed by Madara using the Sharigan. How much you want to bet that in the decades Madara was in hiding, he found another person that can use Kotoamatsukami, and stole their eye(s). He then transplants it into his empty eye socket, and will be shown using it on Obito in a few chapters. He implants the thought into obito's head that "YOU ARE MADARA UCHIHA!!!", and so thus the being known as Tobi comes into existence, knowing he's a total fake madara, but being compelled to act accordingly.