The sky over Konoha was torn open by a blinding crack. A golden portal spiraled above the Hokage Monument, pulsing with unknown energy. Naruto stood atop the Hokage building, eyes narrowed.
From the vortex descended a warrior in orange, hair spiked like flame, aura flaring. "Name's Goku. I don't know how I got here."
Naruto blinked. "This chakra... no, it's something else."
Meanwhile, in a distant sea, Luffy's laughter stopped as a storm unlike any other warped reality. The Thousand Sunny was sucked into a dark current. Luffy awoke on a floating island, staring at another man in a blindfold.
"I'm Gojo Satoru. You don't seem from my world either."
Suddenly, monstrous beings emerged—mutations of anime creatures, twisted by void energy. Gojo and Luffy easily wiped them out, but something was wrong.
In the shadows of time and dimension, a forgotten entity stirred—Erebus, devourer of anime worlds. He had begun his conquest.