Tobi seemed indifferent to Uchiha Sasuke's reaction and continued his narrative:
"Therefore, I obtained the complete Mangekyou Sharingan and became the leader of the Uchiha clan. After that, using that power, I fought against the Senju Clan many times. Wanting to challenge the leader of the Senju Clan—Senju Hashirama—was simply inevitable."
A hint of helplessness and lingering resentment flashed in Tobi's eyes, as if he were recalling those failed battles.
Chapter 426