The Guardian gods - Chapter 14: Duties

In the current era, people are either normal or are with ‘special abilities’. Cases related to the latter are managed by the “National Anomaly Prevention and Control and Special Species Management Office”.
Qi Zheng Emperor Sheng Lingyuan was reawakened a thousand years later after he jumped off the fiery Red Lake. Xuan Ji, a newly transferred staff to the Reparations Division of the Deviant Control Office, finds himself having to clean up the mess of a revived tyrannical monarch. The two seemed to share something from the past, but unbeknownst to them, a big conspiracy is stirring right underneath their noses that could destroy the balance of the world.

- Description from Novelupdates

Weiss, who was a great sorcerer, was reborn. Not only did he return to his youth, but who was this sexy blonde girl in front of him?

This blonde girl wanted Weiss to become her only male pet?

Furthermore, this was the women’s world. The power dynamics of the world had been flipped on its head. Men were responsible for household tasks while women were responsible for providing for the family... “I am a great sorcerer. I can’t just be smitten by beauty in this women’s world!”

“However, why does this female-dominated world feel a little different? The sexy blonde girl at the start knew a little magic?”

“The magical elements of this women’s world doesn’t feel too weak?”

A college student, accidentally reborn into the world of Naruto, becomes a member of Uchiha who is destined to be exterminated.

In this cruel ninja world, in the face of endless wars and exclusion from the village, what will Uchiha Qing do?

PS: Later in the book, the protagonist will develop a system of immortal cultivation. Cultivating Immortals in the Ninja World, have you seen it?

- Description from novelbuddy