In an alternate world... Kaguya triumphed in the great war. Humanity was trapped beneath her eternal genjutsu, the world itself bound by her will.

Yet destiny, ever the unyielding force, refused to be conquered.

The rabbit goddess, believing herself untouchable, chose to release a handful of humans. After all, she needed subjects to rule—and what harm could a few scattered lives possibly bring?

But history... has a cruel way of repeating itself.

Once more, Kaguya fell for a human.

Once more, her bloodline was split between two descendants, their powers diverging into the ancient forces of the Sharingan... and the Byakugan.

The brothers, Ryūsuki—the Sage of Spiritual Paths—and Najirō—the Sage of Physical Paths—uncovered the hidden truths of their mother: the secret behind her endless life, her boundless chakra, and the disappearances that plagued the land.

They, who had grown to love humanity, could not forgive what they learned.

Thus began a new rebellion.

The brothers set out on a journey across the world, seeking the strength to challenge the goddess herself.

Nature, too, had suffered under Kaguya's rule. The Divine Tree drained the life from the land, and the creatures of the earth—who despised Kaguya's presence—rallied behind the two young heroes.

The call to arms was answered swiftly.

People, tired of tyranny, stood ready to fight.

Five hundred and two brave souls divided themselves into ten squads, each trained by the ancient masters of the wild: the giant raccoons of the desert, the wise monkeys of the mountains, and many others.

Ryūsuki and Najirō, destined for even greater power, sought their own paths—one with the serpents, the other with the toads—each mastering devastating new techniques and refining their sacred eyes.

The day of reckoning came.

Kaguya discovered their growing rebellion—but it was already too late. Humanity had become strong. They had multiplied, learned, and sharpened their strength under the harshest of teachers: survival.

In the final battle, Kaguya stood alone.

And once again... she was sealed away.

To this day, across countless generations, the legend of the two heroes—Ryūsuki and Najirō—continues to echo through the winds of time.