Part 1 Sasuke
or
Part 2 Sasuke
Part 1 Sasuke thought he could kill Itachi with Chidori. Sasuke went to Orochimaru for power even knowing that Orochimaru wants his body
Part 2 Sasuke joined the Akatuki and tried to capture Killer Bee. Sasuke invaded the Five Kage Summit and overused his Mangekyou Sharingan so he almost went blind.
or
Part 2 Sasuke
Part 1 Sasuke thought he could kill Itachi with Chidori. Sasuke went to Orochimaru for power even knowing that Orochimaru wants his body
Part 2 Sasuke joined the Akatuki and tried to capture Killer Bee. Sasuke invaded the Five Kage Summit and overused his Mangekyou Sharingan so he almost went blind.