(Main world: a world where the supernatural is resurfacing + the Uchiha clan + transmigration into sub-worlds)
Sasuke from a parallel world starts leveling up from scratch. After gazing at the blood moon in the sky, he gains the power to travel between worlds.
As his power grows, this seemingly ordinary world begins to stir once more. A single person's strength can never protect an entire clan. What should he do?
Then the System appears, granting the clan shared skills. And so...
Obito: "Kamui! Tear this space apart!"
Shisui: "Kotoamatsukami! King of all demons, get on your knees!"
Itachi: "The undying flames of Amaterasu will burn away every evil spirit beneath the heavens!"
Madara: "How unsightly. Can't you even dance?"
Across the ruined land of Tokyo, countless anomalies howl and rampage beneath the blood moon hanging overhead.
Atop the battered Tokyo Tower, a young man leaps down, drawing a gleaming katana amid the blood and storm. The patterns in his eyes spin without pause, and a thousand-meter-tall purple giant appears, slashing at an indescribable monstrous beast in the same pose.
More anomalies stir below. Behind the young man, one pair of Sharingan after another lights up in the darkness. A thick killing intent ravages the entire battlefield. The great battle is about to begin.
After this battle, all of Tokyo...
Wiped out!
(Most of the named characters from Naruto will appear, along with some characters from other anime.)
It's pretty cool, keep up the good work.