The Mangekyō transplant surgery went very smoothly. Once it was over, Naruto possessed a complete pair of Mangekyō Sharingan.
Compared to a single Mangekyō Sharingan, a pair naturally consumed far more. Without the Nine-Tails supplying Chakra, even he found it somewhat difficult to endure.
The instant the surgery ended, Naruto also gained the method for activating Susanoo.
However, rather than immediately using Susanoo, he summoned Shisui, who had returned from suppressing bandits, and brought him out to the boundless Sand Sea.
Shisui, who had been summoned out, looked at the mysterious Naruto with a puzzled expression.
Naruto stood upon the Sand Sea. After pressing his palms together and circulating the Chakra within his body, a translucent skeleton projected from the void and enclosed him within it.
"Lord Menma, is this the legendary Susanoo?"
Shisui asked uncertainly. He knew that awakening the Mangekyō allowed one to activate Susanoo, but he had never expected that a ninja who transplanted Mangekyō could also wield this supreme ninjutsu.
Naruto merely smiled without replying and continued drawing on more Chakra. Susanoo gradually developed flesh and armor.
Only after reaching its third form did Susanoo gradually stabilize, becoming a tall, burly Susanoo Warrior that radiated an immensely terrifying power.
Just then, more than a dozen Shadow Clones suddenly burst from the sand, charging forward with Rasengan in hand.
More than a dozen Rasenshuriken struck Susanoo in succession. The enormous shockwaves smashed Susanoo into the sand, while a small sandstorm erupted around it.
Shisui could not understand Naruto's actions. Was he testing Susanoo's strength?
Shisui had guessed correctly. Naruto was indeed testing Susanoo's strength, and its performance left him somewhat disappointed. It could not even withstand more than a few Rasenshuriken.
That meant it would be even less useful when defending against Tailed Beast Bombs and Dust