Within a Hollow Heart - Chapter 14: Volume 1, : "Shattered Knowledge"

After Reincarnating into Naruto World at the Warring State Era as an Uzumaki, Masahiko thought that he got a useless System. He lived for 48 years as a normal, below average Uzumaki Shinobi.

That changed when he finally knew how the system works the day of his 49th Birthday!

- Description from Novelupdates

True evil needs no reason to exist.

“All living creatures must die, but I wont. ”

Once known as the most talented and knowledgeable scholar/philosopher across three continents, he basked in the praise and reverence of those around him. However, tragedy struck one fateful night when he bore witness to the cold-blooded murder of his entire family. Driven to madness, he embarked upon the path of power, the path of negative energy, and thus, The Great Demon, Badur, was born.

In a single day, a mountain of corpses were stacked, many of which fell to his blade. However, during his final pursuit of revenge, he met his untimely demise. His soul was extracted and cast into the void, where it would endure eternal suffering.

However, his jouney would not end here……

“What do you desire?”

A grotesque creature floating in the void asked while staring at the bruised and beaten soul of a young man.

[Ding!! Host has received Void grade Treasure]

[Ding!! Goal has been set : Attain True immortality]

A new lease at life is presented

A deal with a Demon filled with resentment

A new journey, a new Dawn

With that the great Demon, Badur is reborn

ps: the book won't progress the way other novels have been progressing. if you don't like a unique development then maybe this isn't the book for you.

Beneath the daily routine, at the end of rationality, outside the world you are familiar with – there is a landscape you have never imagined.When Yu Sheng opened the door for the first time, the world he was familiar with collapsed.And the “truth” that goes straight to the root of the world came to him.

what did you say?
Your mobile phone eight-core processor? 6G running memory? 256G storage? One and a half hours full of electricity?
Very great?
Our mobile phone 16-core processor, 12G running memory, 1T storage, can be fully charged in just 10 minutes!
what did you say?
Your charging treasure 30,000 mAh capacity? Two-way fast charge?
Sorry, our charging treasure has a capacity of 100,000 mAh. As for the two-way fast charging technology… Our 10,000 mAh mobile phone can be fully charged in just ten minutes. Can you tell me two-way fast charging technology?
what did you say? Our products are defective?
Come here! Come over and try, let you see how to kill you in minutes!
Super electronics, super cars, super buildings…
Since Lin Yun acquired the universe trading system, various industries began to get a strong impact…
Money is just a trail, and force is fundamental!
You said that Lin Yun’s goal is to dominate the earth?
Do not! Do not! Do not! You are wrong, his goal is the sea of stars

- Description from uukanshu (translated)