The Debt Of Fate - Chapter 3: Look Sickly.

An ordinary young man on earth, Xia Feng, traveled to a world of sword and magic, and took the body of Lucien Evans, another ordinary young man.

Seemingly this was a world of traditional western fantasy, yet he discovered the astonishing similarities between the earth and this world, and between science and the so-called arcane magic…

“Knowledge is power”? Soul, magic, quantum, Theory of Relativity, cognitive world, music and real world……

What was the true nature of that world?

- Description from Novelupdates

Everything in the world can be repaired!

- Description from novelbuddy

While reading a book, a sparkle of light disappeared. And, as it did, a message appeared.

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