Outa Uchiha

Birth of a little Uchiha
Outa Uchiha was born 5 years after Itachi Uchiha. At the age of 3 his training commenced, his parents wanted him to become the next Uchiha heir. At the age of 5 he unlocked his sharingan. He had graduated from the Academy early. His sharingan unlocked because, the people on his team were killed by rouges from Sunagakure that still had their traditional headbands on. Thus, he unlocked the 1st tomoe of his sharingan. He ran after them all, his speed took the better of them. He killed them by using his Kunai, quickly reporting it to an instructor, meeting resistance along the way that did not understand the situation. The following weeks, his sharingan exploded into the 3rd stage. He was only 5 at the time, at this time he also found out his dominant chakra element was Lightning, not fire like usual.

Uchiha Massacre
During this, Outa was on a mission. The mission was an intense month. He was about 8 at this point, because of new age restrictions (he was also a chunin at the time). His cell was found fleeing from Kumogakure rouges, which all died from a cell catching up behind. He reported into the Hokage's office as usual, giving the full scope of what happened on the mission. The young Uchiha, walked towards his Clan house, after the Massacre of course. What he saw, was surreal, he couldn't believe his eyes. Everyone he knew, loved, even his family. Dead. They all lie on the ground with fear in their faces, especial his younger brother Yukizoi. With this, he screamed out, tears flowing down his cheeks. This trauma would have propelled him into Mangekyou Sharingan.

Mangekyou Sharingan
Outa's mangekyou had several abilities. However, in a rare case any time he used it, it was already Eternal Mangekyou Sharingan. Someone had implanted someone else's Mangekyou Sharingan in, but who? His MS included the standard abilites such as, Susanoo. He also had Ameterasu, which was only found rare in some uchiha members. To top it off, he had Kamui. With this Mangekyou Sharingan, he was able to go into his previous forms at will for certain abilities.