The Monster King's Legacy - Chapter 10: Unexpected Bonding

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

In the 21st century, she was the talented leader of the hidden family clan, once she crossed over, she became the number one waste?

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

It is a parallel world that is full of Star Power. Star Maps, Star Techniques, Star Pets, and the Awakened are rampant. Jiang Xiao, whose soul travelled to this world, has a special internal Star Map within his body and goes on to become a Medical Awakened.