One Piece: Don't Worry, I'm a Doctor - Chapter 234: The Worst Empress So Far

Cultivators all have a soul beast, one that awakens at 13 years old.
However, Ye Chenfeng lacks one and is subsequently banished.
Ye Chenfeng obtains the favor of the heavens after years of humiliation.
With his gifts, he will walk his path to the strongest.

- Description from Novelupdates

fun story

In a certain world, there was someone who excelled in magic combat, people called him 『Sage』. Seeking the strongest combat art, he devoted himself to research every magic and combat arts in existence. And the conclusion he arrived at was very cruel, 『My body is not fit for magic combat』. Yet he didn’t give up. He sealed his own soul with a magic art, and was reborn in a far-off future. And the magic theory in the completely changed world he saw there was of unbelievably low level.

Civilizations change and the era restarts.

The world returned to the age of steel and steam is full of chaos, madness, twist and evil.

Among them, a group of sorcerers called truth followers have done all their bad things.

They sacrificed to evil gods, besieged the Pope, assassinated the emperor, and even provoked the First World War…

All of this had nothing to do with the transmigrator Melon. When the world was in turmoil, he was the one who squatted aside and watched the show.

Until one day, this group of people came to him and insisted on recognizing him as the leader, and also said that he was the son of destiny. Everything they did before was because they followed his instructions…

- Description from novelbuddy