World’s Best Martial Artist - Chapter 25 - Arrangements

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.

- Description from Novelupdates

[Mature and Taboo Contents!]James Trevills, a man who rose to global prominence by seducing and ultimately ruining countless women, found his carefully constructed empire of wealth and notoriety undone by the same women. Yet, his end was merely a new beginning. Reborn as an infant named Harold in a vibrant world brimming with magic, he starts really well!A caring mother!A lovely overprotective big sister!A new life!This unexpected second chance won't temper his ruthless ambition. Though now a mere babe, Harold intends to ascend to the pinnacle of this new world, determined to forge his own Harem Empire. His greatest asset? The unlimited Assimilation Skill, enabling him to perfectly master any talent or ability simply by observing and practicing it.James Trevills had fallen but Harold Eindoral woke up.

Elijah is dying.Afflicted with terminal cancer, his days are limited. So, after deciding to spend his remaining time with family, he boards a plane and sets off for the Pacific Northwest to be with his sister. However, along the way, Earth is transformed by the touch of the World Tree, injecting it with magical Ethera and connecting it to a much larger universe via the System. More importantly for Elijah, though, it also causes his plane to crash, stranding him on a deserted island. But all is not lost, and through the System, he gains the Druid archetype that may be enough to allow him to survive a hostile environment filled with powerful monsters as well as more mundane threats like starvation and the elements. Meanwhile, his sister, Alyssa, must survive the collapse of civilization as she knows it while trying to keep her family safe. Follow them as they try to navigate an apocalyptic world full of game-like stats, classes, and threats aplenty.

Everyone thought that the most powerful scientist they had ever seen was a national treasure-level scientist until they saw Baizhi-
The light of technology, a cosmic scientist.

Three thousand worlds are different.

In each world, she is keen on scientific research.

This is a story of a scientific researcher who concentrates on scientific research, explores high-dimensional science in various worlds, and refuses to admit defeat and fate. The text is easy to comprehend, flows smoothly, humorously, and the plot is full of ups and downs, and it is full of positive energy.

- Description from Novelupdates