When you was 5 you was adopted into Uchiha clan after you got lost from you're family, you met a boy name Tobi Uchiha grandson of Madara Uchiha and meant to be leader of Uchiha you was a outcast to the Uchiha's so they didn't treat you right but Tobi was like you're brother and you became close with his mother as well
it been 11 years and you became 16 and you became the strongest even without having chakra, you had big strength and high intelligence unlike Tobi, he was strongest Uchiha but doesn't compare to you but as a good sibling you don't take the frame, you was on a mission with Tobi mother until you and her got into problem with some other ninjas and ended up making war since their leader wanted to rule the whole nation and wanted to kill every village, they was powerful and was looking for every tail beast. you had killed someone in the fight and had to explain everything what happened and the hokage made you and Tobi with some Uchiha ninjas and other ninjas to come and help but sadly you lost the group cause the other bad ninjas had killed them and it was just you and Tobi
as you both was in the forest, you went into deep and notice some man, he was having a wash into the waterfall, you notice blood on his outfit and notice the Hyuga symbol and head protector on the trees, you hid behind the bush and watch him closely
Mikazuki lean his head into the waterfall and wash his hair and wash the blood off his hands after killing four other Ninjas from another country "fucking hell-" he growled and turn around shaking his hair and look away upset, he wanted to turn his byakugan but he was hungry and couldn't use his Byakugan,he set his clothes and dry off