A Nascent Kaleidoscope. - Chapter 580:

Humanity achieved dominion over the galaxy long ago.Once that was accomplished, they turned their ingenuity inwards. With their prowess over biological engineering, they transformed themselves into deific beings now called the Gene Tyrants. For centuries, the Gene Tyrants terrorized the galaxy, designing and abusing their genetically engineered servants and serfs as their whims took them.No tyranny can last forever, though, and the Gene Tyrants were eventually overthrown. The rebels discovered a strange light of the mind called Aether, which gave them the strange and fantastical powers they needed to eradicate their creators. Once that was done, however, that by no means meant peace.In the thousand years since, the face of the galaxy has changed. The most powerful human civilization is called the Supremacy, the homeland of 'might makes right'. In the Supremacy, a crime committed by the strong is no crime at all. With their military strength and mastery of Aether, the Supremacy has spread across the galaxy -- with the other powers able to do little but stall their advance. This struggle has developed into a cold war, and that cold war has frozen over for years now.Dragan Hadrien, a low-level administrator in the Supremacy, cares nothing for any of this. Dragan's primary concern is getting himself a promotion and taking it easy for the rest of his days. When a mysterious prisoner is brought aboard his ship, he thinks he has found the means to do just that.How naive of him.

Traveling through the world of One Piece, Ron, who became Kuina’s fiancé, awakened the god-level theft system.

In order to become stronger and change the fate of Kuina’s death, and to survive in this dangerous era of great pirates, Ron started to steal Sauron’s top kendo talent.

And that’s just the beginning.

In order to become stronger, Ron embarked on a journey to steal the talents of the world’s strongest.

“Ding! Congratulations to the host for stealing Karp’s physical talent!”

“Ding! Congratulations to the host for stealing Nika’s talent!”

“Ding! Congratulations to the host for stealing Shanks’ domineering talent!”

“Ding! Congratulations to the host…”

- Description from novelbuddy

On the night when the savior of the wizarding world should have been born, Harry Potter died under the unforgivable curse.

The man who made almost all British wizards dare not call him by name, regained the wisdom and ambition that belonged to him from the Horcrux.

Darkness has completely enveloped the island of Great Britain.

Wizards are divided into high and low according to their bloodlines. Pure blood firmly holds the authority that belongs to the superior, and people called mudbloods can only be as humble as mud and trampled on throughout their lives.

The Ministry of Magic, which is supposed to enforce justice, is full of villains, and the castle, which is supposed to impart knowledge, is full of oppression.

In these dark times.

Jon Green, who came from across time, was brought into the exiled carriage that truly inherited the title of “Hogwarts”…

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- Description from novelbuddy

He became a teacher at the best magic academy in the empire.
….For being mistaken for someone else.