Book Of The Dead - Chapter B4C39 - The Grand Design

An ordinary student accidentally traveled into an other universe and became the king of a small kingdom. He had gotten a “Cheating Code” of life and was able to complete something extraordinary. This is the story about a king that was able to conquer continents and leave behind him an ultimate legend that will be recited between every generation to come.

- Description from novelupdates

A sudden and unprecedented event occurred and took place on Earth.A fissure instantly appeared in the clear blue sky, revealing a void devoid of any light beyond, instantly covering the whole planet, leaving no Life, no Hell, and no Paradise behind...Hence the start of a new chaos and a great beginning of life devoid of any hope began.In this apocalypse and lawless world without any limits set upon its beings, a silent dark wisp took form.A wisp that was bound to become the Horror of All was born...“Wait… I’ve become a Ghost?!”

With a father as strong as the highest heavens themselves, Gravis wasn't required to step into the cold and ruthless world of cultivation. But when Heaven used him in a scheme to get back at his father, Gravis realized that he needed strength to gain true freedom.

As long as he remained his weak self, he would always remain beneath Heaven’s oppression. Only true power brings true freedom. To gain strength, Gravis ventured into the lower worlds to start his cultivation under true life and death tempering.

Only a strong will, which had been forged in striving for every resource available, would allow him to reach the peak. Heaven’s strongest weapon was Lightning of Divine Punishment, and only if he made this weapon his, would he have a chance.

So, to overthrow Heaven,

Lightning Is the Only Way!

Yet, the path to power is painful.

Not everyone reaches the peak.

But Gravis will!

No matter how much pain he feels along the way!

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