As the Third Shinobi World War drew to a close, a young man from Blue Star, carrying a cheat ability, crossed over into the Hokage world and possessed the body of a useless Uchiha.
From then on, the scheming Uchiha Tianze made his debut, changing the course of history through the continual evolution of his Sharingan.
Whose Sharingan is the most powerful? Whose Sharingan is the most evil?
Hiruzen Sarutobi: Do you even have to ask?
Madara Uchiha: Of course it isn't mine!
Uchiha Itachi: They absolutely both belong to my older brother!