Remarry, No Way! - Chapter 278

Masterpieces such as 'The Divine Comedy', 'The Theory of Evolution', 'Encyclopaedia Britannica', 'The Theory of Relativity'...Born in the history of human civilization, possess mysterious and magical powers in another world!Original sin, biological evolution, mastery of all arts...By reading the secret tomes, one can gain a variety of powers!The only trouble for the people of the other world is that they find it difficult to understand the texts from Earth.At this time, there comes a librarian from Earth...

“From my viewpoint, this so-called supreme bastard’s body will serve as a valuable asset to simplify my life.”Dane was a carefree slacker until a deadly virus turned humanity into flesh-eating monsters—his own roommate included. After being devoured, he mysteriously awakens inside a simulated LitRPG world as a hidden extra, far stronger than the protagonist. Gifted with Adaptation and a heavenly beast, he rises through Soul Academy, defying expectations. However, a mysterious hindrance threatens his newfound power, forcing him to fight for survival.‘…One… Two… Three… Wake up!’

This is a cliché story about two young people saving the world.

A supreme expert in the Immortal World had died, and a strand of his soul returned to its original body on Earth. Tang Xiu discovered with amazement that ten thousand years passed in the Immortal World, yet only a single year passed on Earth.

Ruthlessly betrayed by his lover and trusted friends, Tang Xiu found that his soul went back to his previous body on Earth, and, despite he spent 10,000 years in the Immortal World, just a year has passed on Earth and many things have changed. Having an unsurpassed knowledge, Tang Xiu will protect his loved ones and go back to the Immortal World to take his revenge.

- Description from Novelupdates