Fang Yuan glanced at Itachi with interest.
After merging the now-dead Kyuubi's chakra into his own, Fang Yuan wasn't as cold as before not because his mind was merged with the Kyuubi or anything but because of another great reason. He had finally achieved eternal lifespan.
He didn't have eternal life, he wasn't omnipotent yet but he wasn't on a time limit either. Now he just had to travel in this world to see and research every single jutsu. Once he did so, once he got supreme-grandmaster attainments in all paths this world had, he would achieve the omnipresence he had before. And the path to omnipotence, after assimilating the Kyuubi, Fang Yuan could vaguely sense he was incomplete. Based off this, Fang Yuan speculated that the nine-tailed beasts were fragments of something far greater. He had already assimilated the One-Tail after the Kyuubi and he knew what his next move would be: gather all the tailed beasts. But time was not his enemy, so he wasn't in a rush.
"Bastard, give your answer." Itachi glared.
"Yes, Uchiha Itachi," Fang Yuan replied calmly, as if discussing the weather. "I destroyed the village."
Itachi's Sharingan flared even brighter, the swirl of the Mangekyo deepening as his rage grew.
"Is Uchiha Sasuke alive?" Itachi demanded.
"N-" Itachi threw 6 shuriken, 2 coming from the front and the other at his back. Itachi was planning to make the 4 bounce back and all that jazz but he had picked the wrong opponent.
"Magnet Release" The kunai paused mid-air and headed towards Itachi.
Itachi quickly took out a kunai to defend himself but that kunai got controlled too, slowing down his movements. Itachi quickly dropped his kunai bag and had to jump back a second time. But the shurikens and kunai kept following him, their numbers getting larger and larger with shuriken shadow clone jutsus.
"Tch." Itachi sneered.
Slowly, a red aura appeared around Itachi, slowly transforming into a skeletal figure. An arm appeared and in a quick motion, caught the projectiles with its hand, crushing them instantly, turning them into powder.
The skeleton dissolved under Itachi's gloomy eyes. To think that he had to use his trump card so early into the battle. With his rage, he had been careless. But to think that the opponent possessed magnet release, the shuriken thrown to probe the opponent while gathering chakra to activate Tsukuyomi had instead cost him a Susanoo activation.
Its important to mention this Itachi wasn't the Itachi Sasuke had fought who was practically blind at that time and still held back. This Itachi was far closer to his prime than that Itachi had been, who could even afford to use Tsukuyomi on Kakashi.
"Don't drop your guard in a fight, Uchiha Itachi"
Itachi's eyes widened as he tried to leap back. But it was too late to dodge.
After getting crushed, the shuriken were now basically a powder, iron powder. But just because it was crushed, it didn't mean it couldn't be controlled. Focused on the Susanoo activation, Itachi who had only heard of magnet release couldn't predict that either.
And now, as his leg was about to be pierced, which would take most of his mobility, Itachi had to summon the Susanoo again.
The iron powder hit the Susanoo's armor, unable to pierce it at the slightest.
Altough Itachi had stopped the iron powder, getting rid of it was another matter. He didn't want to expose the Totsuka blade so there was only one option.
"Amaterasu" A black flame appeared on the powder, melting it.
Itachi then looked up and saw Fang Yuan had retreated back.
"What? Is he scared of fire?" Itachi mused.
In the distance, Fang Yuan said "What the hell, why is that flame even black? I thought it was chaos again but its just a colored flame."
Itachi, unaware of Fang Yuan's thoughts, jolted forward.
"Amaterasu" A black flame followed the sharingan's gaze, everything on its way catching on fire. Itachi recklessly went forward, expecting Fang Yuan to dodge with all his effort.
His expectations weren't met.
A thin wall of water appeared around Fang Yuan, flowing in a strange way. As soon as Amaterasu contacted the water, Itachi expected to have won.
But Amaterasu was actually stopped.
"But how? Amaterasu is the eternal flame." Itachi thought.
Because of his reckless pursuit, Itachi couldn't dodge in time and Fang Yuan's chakra-enhanced fist went through his body.
"The burning water is expelled out of the jutsu, evaporating in air. You shouldn't trust in your flame too much, Uchiha Itachi."
Itachi looked at Fang Yuan intensely as the light in his eyes faded. He lifted his hand up with 2 of his fingers pointing at Fang Yuan.
Then, Itachi turned his wrist.
Fang Yuan followed that movement to see Itachi standing, his arm resting in the middle of his cloak.
Fang Yuan's eyes narrowed "You are a great or maybe even a quasi-supreme grandmaster but..."
Itachi's eyes widened as yet another hand pierced through his lungs.
"I am a supreme-grandmaster." Fang Yuan had pierced Itachi's heart.
But then, before Fang Yuan's shocked gaze, a crow appeared, and another and more. Itachi was split into crows and reformed a distance away.
"I don't know what you are talking about but a non-Uchiha boasting about being better than me in genjutsu...
"Truly arrogant." With those words, Fang Yuan found himself tied to a cross.
He looked around to see Itachi with a sword in hand.
"In the Tsukuyomi, even the physical mass, I control them all"
"For the next 72 hours, you will get stabbed to death." Now 2 Itachis said.
"So this is the ability of one of your sharingan. Human Path beyond supreme-grandmaster, able to replicate dream path to such a level."
"Though still, barely supreme-grandmaster." Fang Yuan said.
The next time Itachi blinked, he found himself tied up to the cross instead. His eyes widened as he saw 2 Fang Yuans each holding a sword.
"Itachi, sorry to say this but" Fang Yuan mocked.
"Genjutsu of that level doesn't work on me"
Fang Yuan started stabbing Itachi. Itachi died once. Twice. Three, four, five times.
For the next 72 hours, Fang Yuans kept stabbing Itachi, making him feel every bit of pain. At the end of the 3 days, Itachi had died 22384 times and finally the genjutsu was over.
Itachi collapsed onto the ground, "To think that my genjutsu would be used against me, and by someone without the sharingan." Itachi's gaze was hazy as he looked up at Fang Yuan.
Realizing his situation, Itachi had a single question in mind "How did Sasuke die?" He asked.
Fang Yuan looked at Itachi with disdain. "Why does that matter to you? At the end of the day, without eternal life, you and him are all just a sack of meat and bone."
"Because he is my brother." Itachi answered.
Fang Yuan scoffed "Uchiha Itachi, although we had different motives, our actions were the same. I massacred my clan too. Every single one of them except my brother but unlike you, I wasn't bound by feeling. I felt nothing. Nothing but joy at getting benefits. You though are truly pitiful, wiping them all out for such a dream. You should have known, if there is a goal harder to reach than eternal life, that is the goal of peace."
Itachi looked at Fang Yuan, his now black eyes slowly losing their gleam. Fang Yuan raised his hand, about to sever Itachi's neck.
Just then, a vortex appeared, making Fang Yuan retreat backwards.
"Madara" Itachi said.
"What space path prowess." Fang Yuan muttered.
The masked man looked at Fang Yuan "Fang Yuan, to think that you devoured the 9-tails, and have beaten Itachi. We will meet again soon." The man put his hand on Itachi's shoulder and the two vanished in a vortex.
"Great technique." Fang Yuan mused, then he turned his gaze, looking at the distant mountain.
Descending the mountain were 3 incredibly fast shinobi. After no more than 10 seconds they arrived at a stand-off.
At the left stood the blonde strongest kunoichi, Senju Tsunade. The best healer ninja in the world in flesh, wielding power to easily shatter mountains.
At the right stood the snake, Orochimaru. The scariest Sannin wielding countless forbidden ninjutsu. The most unkillable ninja in the ninja world, the first to survive an encounter with Fang Yuan.
At the middle stood Jiraiya the Gallant. Chasing his destiny of raising the Child of Prophecy, from a normal civillian to wielding Sage Mode, even though a pervert, he was the strongest of the Sannin.
Jiraiya took a step and declared "Fang Yuan, for destroying Konoha, you will die today!"