From Idler to Tech Tycoon: Earth - Chapter 18: Old Connections

The grandson of the richest person, is just this willful.He doesnt wanna just be a rich guy who spends money for living,At this time, he became a bodyguard of a Beautiful CEO,“Be your temporary boyfriend? Can, but...”“Just show me how can we make a deal, or in other words, what can you do for me?”

Fifty years ago, the world changed forever when Earth was mysteriously connected to the Primordial World, a reality that operates like a game.This world can only be entered by Awakeners—people who have awakened with special powers. However, out of fifteen billion humans, only one million have this privilege.Enzo, a poor young man with no connection to the Primordial World, should have had no chance of becoming an Awakener.However, against all odds, he awakens... and more than that, he gains an innate skill unheard of before—the ability to make skills with only his imagination.In a world where power determines everything, how will a nameless young man carve his own path?

She died in her prime as the Queen of Song.

After being reincarnated, she becomes a simple trainee.

Losing her former glory? It doesn’t matter—no one can compete with her voice as a beautiful singer.

Mocked by her lowly birth? It doesn’t matter—her true identity is enough to make the whole world tremble.

She owes huge debts? It doesn’t matter…

A powerful boss once whispered to her, “Your debt will disappear if you become my woman.”

But the proud her would reply, “I’m sorry. I would sell my art, but not myself.”

- Description from Novelupdates

In the tenth year after the new era, the world finally came to an end. Zhang Mu truefully waited for his death, but unexpectedly found that he had returned to ten years ago. With his memory about the future, he swore that he would change the calamitous history, saving the earth from being destroyed! Walking dead, zergs, evolvers, and various mutated animals… nothing can stop him! The first step is to retrieve his identity as an era merchant , then find all the treasures he can remember to enhance himself!

- Description from Novelupdates