I Can Level Up By Staying Idle - Chapter 291 - Joint Force

Being reborn into the isolated world of Goldoria, a land filled with lost civilizations, dead gods, and an ever-spreading decay, Rael must survive, grow, and rise amidst the Era of Ruin — a time where people hide behind high walls and live under a feudal society.Being “lucky” enough to be branded an exile and cast out from the walls of Grandveil, he awakens a system he can’t fully trust, yet must rely on to survive and forge his predestined dominion.------------------------------------------------The system grants no overpowered abilities, no sudden power-ups — only manuscripts, techniques, and blueprints from the pre-Godfall eras.If Rael desires strength, he must earn it through grit, pain, and sweat.

A teenager who unexpectedly gets transported to the modern world from ‘the world of the immortals’ . He finds himself in the body of an ordinary guy. He wants to go back to his world and for that, he will have to practice to get stronger and investigate the reason why and how he crossed through to this world.

“Primum non nocere.”

After rebirth, Long Xiaoyuan went into raptures because he was in poor health in his previous life. However, he suddenly found that his soul was in the body of a fatuous and self-indulgent emperor.

This fatuous emperor put sycophants in important positions while executed the faithful and the upright!

This merciless emperor married the son of a general and kept torturing him!

How could he be reborn as such a person?

The empress was pretty handsome and smart. Since the former soul of the emperor didn’t cherish such an excellent man, Long Xiaoyuan would love the guy and save himself by the way!

- Description from Novelupdates