(3rd Person POV)
While Kei could easily dispose of both of the intruders, that wasn't the fundamental problem in this case.
They were both key players in this game, not to mention one of them was the only one who knew how to bring back Kaguya. He needed to find a way to make them both fall back and not bother him anymore, as if he just defeated them, it would only prompt them to act at another time… maybe even with countermeasures against him.
As thousands of different ideas from thousands of minds flowed through his mind in but a moment, conversations and arguments ensued, and one simple method was deemed as the best. To lie.
Kei's Eternal Mangekyou rotated as he turned to look at Zetsu who suddenly heard a voice reach him.
"There is something in you… something that reminds me of her… something… it's your chakra. Why do you have Kaguya's chakra?" – Lies rolled off of Kei as Zetsu's eyes locked to the original's, past the clone keeping him prisoner and straight to the figure standing behind Obito.
His yellow eyes widened at the mentioning of his mother's name, a name he hadn't heard for approximately a millennia.
Without noticing the exchange, Obito jumped and rotated aiming a kick at the Kei behind him, his heel making contact with Kei's head from the left side. As Kei's body tilted to the right from the impact, without missing a beat Kei used the momentum to rotate on his left leg.
As he landed, Obito looked at Kei as his right foot phased through Obito's head, who quickly sunk into the ground.
Kei lifted the blade remaining in his hand, noticing that only a quarter of the blade remained in his hand, most of it fell on the floor and the small part he couldn't see possibly still imbedded inside Obito, the small amount of his chakra disturbing Obito's chakra flaw enough to dispel his own genjutsu.
'This is getting real old, real fast.' – Kei thought as he sighed silently.
"Where did you learn that name?" – A voice asked from the side, Zetsu's yellow eyes staring at his blood-soaked ones as he asked the question.
Without answering Kei's eyes darted around the room, seemingly searching for something.
"He's gone, he won't be back anytime soon." – Zetsu answered as to assure the young Hokage.
"… In a dream, when I was but an ignorant boy." – Dropping the broken blade in the floor Kei made his way towards Zetsu.
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(Kei POV - 10 min later.)
'Fixing this place would be a waste of time… it's already served its purpose.' – I Thought as I looked at the cracks spreading all over the floor and the barely standing wall Zetsu was planted in.
It's clear he doesn't outright believe me, he definitely doesn't trust me… but the details I know are not something that can be learned by reading it in some slab of stone.
'Lying about having some protagonist's golden finger… definitely not what I thought I was going to be doing any time soon.'
Lying to Black Zetsu was the easiest way for me to ensure that the original timeline was held up. Naturally, that was already long gone, people had died, events had changed and Sasuke was considerably more powerful than Naruto at this point. The Sage was on to me and the situation between the villages had undergone a drastic change. At this point, I was using duck tape to fix the wall that held the original timeline in check.
Of course, to my knowledge that wall might as well be nonexistent and undercurrents could be taking place that would see me fail before the war started… but I still had to try. There were only 2 eyes that could ensure my departure from this small universe.
Taking a step towards Sasuke, I suddenly felt my body fall, my left knee meeting the stone surface as blood surged from my mouth, ears nose, and eyes.
"GAH!" – I grunted as the floor was painted red with my blood.
I had long since attempted to use the Eight Gates, having more than the foundation required, my body capable of sustaining physical abuse on a scale that could put tailed beasts to shame from a young age.
Sadly the Eight Gates was made for a human to surpass their limit… and I was no human. Every stage of the Eight Gates required the release of the full potential of a part of the human body, such as the mind, the stomach, and so on until the heart.
In my original body I had none of these organs, and creating a body to use it proved… less than efficient.
It was true that such a technique provided the body with enormous power comparative to the base body… but the trade-off was having an actual human body… full of weaknesses. Each part whose full potential was released was a weak point in comparison to my original body.
The trade-off was simply not worth it for me, but that didn't mean there was no worth in researching it more. That is how I decided to use a human body in a spar with Guy over the coming days…
Automatically using the same amount of chakra I use in my actual body had… sent this one over the edge.
'The first time I feel actual pain… so bothersome.' – A feeling that taught me how a body can fight against itself.
*Stupid child. Trying to find ways to fit some piece of humanity into you even when you are so high above them.* - Kei heard the voice rumble in his head as the room vanished and he found himself standing alone in a lake, the surface displaying a blood-red moon with his eye on it, his reflection standing upright as opposed to him bloodied and on his knee, mirroring his eyes as it stared into them.
Kei knew what was talking to him, knew 'it' was right, and also knew the time had come to be… reworked. He had once again drifted too close to thinking and acting like a human, to limiting himself.