Naruto: I'm Nine-Tails and My Host is Kushina

Zetsu had been plotting in the shadows for millennia.

From the era of the Sage of Six Paths to the current age, its sole objective had remained unchanged—resurrect its mother, Ōtsutsuki Kaguya.

In a twisted sense, Zetsu could be seen as the most filial being in the ninja world.

And yet, the same could not be said of its "brothers," Ōtsutsuki Hagoromo—the Sage of Six Paths—and Ōtsutsuki Hamura.

They were, in Zetsu’s eyes, the true villains of this world. They had sealed their mother away.

For thousands of years, Zetsu endured humiliation, scheming and manipulating from the shadows.

During the time of Hagoromo, Zetsu set its sights on the Sage’s sons: Indra and Asura.

It successfully sowed discord between the two, igniting the cycle of hatred. Brother turned on brother.

But in the end, the body of the Sage—Asura—prevailed over Indra’s Sharingan.

Thus, the legacy of Ninshū lived on, and Zetsu’s plan met its first failure.

It had believed the Sharingan-wielding Indra would surely triumph.

But with Hagoromo’s guidance and widespread support, Asura’s ideals flourished, and Zetsu’s hatred fermented deeper.