Itachi talks about the past. Madara also had a brother...a younger brother. The two always competed with each other when they were small. They both activated the Sharingan, which made them special in their clan. They grew up together competing with each other...eventually they obtained the Mangekyo Sharingan through their own understanding. But some strange changes started to appear in Madara’s body. Having gained the tremendous eye power...the price is to lose the eyesight. Madara felt ...