Because Uchiha wanted to learn the ninjutsu of the Senju Tobirama, although he was an Uchiha, he could not stop his desire to learn the ninjutsu of the Senju clan. He kept trying space and time ninjutsu, and then traveled to their period.
Help, why are Uchiha Madara and Senju Hashirama so passionate about each other? The information about Uchiha Izuna looks fake! I want to go back! ! !
Conception:,