Shadow Eye in Naruto

Surprised by his own sudden death and by his fortunate chance at reincarnation Kaito choose a rather uncommon option. Born into the beginning of the Warring States Period, he went through countless battles and came out on top.

(Authors Note:I choose the Warring States Period because it allows me to be as creative as I want to considering that we havent been told very much about it, only the main events.)