The supporting character's harem is very normal - Chapter 364 Lathel, you are really interesting

Levi, a young man who spent over a thousand years in a cultivation world, awakens in a hospital only to discover that two years have passed on Earth. The world he left behind has completely changed—mysterious spiritual energy has appeared, transforming Earth into a cultivation world filled with monsters, undead cultivators, and mysterious places like floating islands.Though Levi is furious that the entity who transported him to the other world failed to stop time on Earth as promised, he must now face the new reality. In a world now filled with cultivators, interdimensional conflicts, and the presence of a cultivation leveling system, Levi struggles to adjust to his weakened human body while seeking to uncover what happened to his mysteriously missing family.

It begins on the mountain.

With the glint of a knife, a flash of steel in the hands of a sworn brother. A betrayal.

Stabbed and pushed down the mountain, Zi Chen lied within the red-stained snow, left to die.

This is where it begins; he is given life by lightning,
baptized by thunder.

Those who had once betrayed him should all suffer in his cruel revenge.

- Description from Novelupdates

Payload specialist, Tang Yue, who is a mechanical and electrical engineer by training, is left stranded on Mars when he receives news from his AI robot assistant, Old Cat, that Earth has exploded. He believes himself to be the last human in the Universe.

Ye Chen transmigrated into the world of cultivation and became the Saint Master of a Sacred Land. However, he discovered that the Heavenly Origin Sacred Land’s source of income took a big hit, and their finances were in the red. The Sacred Land is basically on the brink of bankruptcy.And so, Ye Chen invented the mobile phone for the cultivation world, causing a sensation throughout the realm. And this was only the beginning!Foundation Establishment cultivators delivering packages on their swords.Qi Refinement cultivators attending online classes from the comfort of their homes.The three major Sacred Lands all opening online shops!And a legendary Saintess becoming the queen of live streaming!All these changes started on the day the cultivation world’s version of a mobile phone was released!