To understand why Kakashi possesses two Mangekyō Sharingan, we must go back to when Black Zetsu separated from Obito Uchiha's body. Obito Uchiha's body was blasted far away, and his soul entered a mysterious state.
Of course, all of this was caused by the immortal Sage of Six Paths Realms of the Pure Land World.
In a dream, Obito Uchiha Kakashi. The two experience a Samsara of dreams and reincarnation. In the end, Obito understands the truth Rin Nohara's death, analyzes the dishonorable role played by Madara Uchiha, and thus repents. He lends one of his Mangekyō Sharingan to his best friend Kakashi.
It might seem like a fantasy, even absurd, but it actually happened!
" Kakashi, are you alright!" Might Guy, thanks to Kakashi's activated Susanoo and his own strong will, avoided being directly exposed to the moonlight and thus escaped the disaster of the Infinite Tsukuyomi.
"Kai, we have to get to the past right away!" Kakashi took a deep breath. He thought it was just a dream, but it had actually become reality. If that was the case, then the situation Obito described was going to be very bad.
"Okay." Although Might Guy was usually oblivious, the scene unfolding around him left him speechless and his expression turned serious.
At this moment, Madara Uchiha stood in the void in his Six Paths Bodies form, his expression aloof and arrogant.
"Once you are dealt with, the Shinobi World will achieve true peace!"
Hashirama Senju angrily retorted, "Madara, is this your understanding of peace? You're deceiving yourself!"
"No fighting or friction occurs, no war takes place, then there is peace!" Madara Uchiha coldly.
" Hashirama, come on! Let's see if you can still stop me!"
Hashirama Senju instantly activated Sage Mode, shouting, " Wood Release: Wood Dragon Technique!"
Wood Dragon, as large as a mountain, rose from the ground, roaring ferociously as it swung its wooden arm and slammed it towards Madara Uchiha.
Madara Uchiha remained expressionless. As the Six Paths Staff swept across, ripples spread through the void, and several Truth-Seeking Orb shot out, piercing through the Wood Dragon and about to strike the First Hokage, Hashirama Senju.
Hashirama Senju Truth-Seeking Orb- Seeking Balls and quickly used the Wood Clone Technique to evade them.
The wooden substitute was struck by the Truth-Seeking Orb, and as if it were Void, the source of everything was obliterated.
Naruto, Sasuke, and the others were shocked; Madara Uchiha was too strong now!
" Hashirama, the methods you once took pride in, which were able to suppress the Nine-Tails, are now so fragile and vulnerable! Do you realize the gap between us now!" Madara Uchiha laughed, feeling a strange sense of satisfaction. He had finally outmaneuvered Hashirama.
"Hmph! Madara, don't be so smug!" Hashirama Senju sneered.
Sage Art: Wood Release: Sage Art: Wood Release: True Several Thousand Hands!
As Hashirama Senju clasped his hands together, a mountain-like Buddha statue with countless giant arms appeared behind him, exuding a terrifying aura and an ancient, overwhelming presence, as if an ancient god had descended.
"A petty trick!" Madara Uchiha.
Sage Art: Storm Release: Light Fang!
Suddenly, a purple beam of light burst from Madara Uchiha's mouth, instantly sweeping across the Senju Buddha statue, snapping it in half and destroying it—its Destruction power was terrifying.
" Naruto, go!" Sasuke controlled the Perfect Susanoo, and after Kagutsuchi Susanoo, the Susanoo swung its giant sword and Madara Uchiha.
" Sage Art: Nine-Tails Ultra-Big Ball Rasengan!" Naruto had no time to talk to his father, the Fourth Hokage Minato Namikaze. In his Nine-Tails Form, he shot away like a fiery arrow.
Madara Uchiha sneered. The Truth-Seeking Orb behind him possessed the power to destroy everything, as well as the ability to provide absolute defense.