Blackstone Code - Chapter 55:

The consciousness of a Great Magus suddenly returned to his original body on earth, just before he transmigrated into the magic world.

Nothing has changed, it's still the same earth.

However, when he looked at earth once more as a former great magus, he discovered earth was not as simple as he knew it to be.

Hidden magus, legendary races such as vampires and werewolves, they do exist, ruling the world through the shadows.

Faced with a former great magus, who possessed as many spells as libraries, would the earth that had been ruled by a few people be able to remain calm?

The heroic person, with the ambition of the jackal, is a heroic person.

Astur Bader: The Brood of Alienation and Flesh, Lord of Death and Slavery.

When the two coexist together and wake up in the world of “ONE PIECE”, these heroes will rise together, and the magnificent sea will bury many bones. It is to become a pirate, to follow the current, to stand on the top of the tide; or to start from A tiny navy, hitting the water in mid-stream, conquering the wind and thunder of the four seas.

The pirate is realistic, the golden finger is the mother’s nest, similar to the nest of the interstellar zerg tyrants, and will gradually establish a base, the BOSS-type protagonist, does not follow the ship, and gradually climbs to the top by means of tricks, not smearing the straw hat group is only this, Enemy or friend only depends on the protagonist’s position at the time. There are right and wrong, but it is more beneficial. Realism is to create and restore the most real and cruel face of the pirate world on the basis of animation.

You can read it even if you haven’t read the original, it doesn’t matter.

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- Description from novelbuddy

There are a total of seven sins, and a revelation is made to a young man named Alex that he is destined to become a demon lord, more especially a demon lord of sin called LUST.

It's not like he can change that and because he always knew something about himself was different—not in a physical sense, well, maybe a little—and not in a mental sense—but rather because he is thrown into a demonic war that compels him to accept his new reality.

He was only aware of a difference in himself. Relating to him and the ladies who are drawn to him... Well, it was more or less like he was a magnet in front of all the girls, and all the girls were drawn to him like a metal.

She was a famous assassin who had killed important figures, but ironically, she was killed by her own lover.And when she thought she was dead, it turned out she was occupying the soul of a young girl who was tricked by her own family.'Because I have been reborn, I will take revenge on the people who planned my murder and also teach a lesson to the people who underestimated the girl whose soul I reside in!'However, things become complicated when she has to marry a cold man, whom she spent the night with.