"Ah—! Amaterasu!"
Black Zetsu let out a shrill scream. Its special body, formed from Yin-Yang Release, was actually unable to extinguish the black flames from hell.
The viscous black flames, seemingly alive, were like a ravenous beast. The instant they touched its body, they crazily gnawed and spread, producing sizzling, scorching sounds.
Black Zetsu rolled frantically across the dusty mud, desperately using what remained of its black sludge to beat at the flames on its body, but only made them burn even more violently.
"How... how can there be natural energy in these flames?!"
Black Zetsu's two yellow eyes shrank to pinpoints in terror amid the black flames. It could clearly sense that the cold black fire actually contained a trace of exceptionally pure Sage Art aura.
The properties of this Sage Art naturally, almost devastatingly, countered a special spiritual entity like it, one created by Yin-Yang Release.
It was like boiling water poured over thin ice. Vast swathes of the black sludge within its body vaporized in the firelight, turning into streams of sour, foul black smoke.
"You brat! You actually fused the Sage power refined by Orochimaru into your ocular technique?!"
Black Zetsu convulsed in the mud from the pain, its voice as sharp and grating as metal scraping against an iron plate.
It simply could not understand how a mere six-year-old Uchiha had not only awakened the Mangekyō Sharingan on his own, but had even turned the Mangekyō Sharingan's supreme technique, Amaterasu, into this kind of newfangled black-tech trick.
This fucking defied all common sense!
"You sure talk a lot, old black sludge."
Sasuke propped his chin up with one hand, tilting his head as he watched Black Zetsu roll around on the ground, his eyes filled with undisguised disdain.
"My big brother said pure physical flames