My Muscle System in the Mage World - Chapter 373 Martial Arts?

【The first emperor of the Alabasta Empire, Ryan Rowan】Life

685 – crossing;

690 – Eat the Shasha fruit and develop the fruit ability based on the [Desert Emperor] Azir;

695 – Meets close friend Neferutari;

715 – Establishment of the Alabasta Empire;

719 – Rowan died in battle, on the eve of the establishment of the World Government;

720 – the establishment of the world government;

A blank hundred years begin.

…

Eight hundred years later.

Haiyuan Calendar 1507——

Due to the aftermath of the battle of Crocodile, who was the shasha fruit power user at the time, Rowan, who was sleeping, woke up.

…

On that day, one million imperial soldiers stood in Marin Van Doo, and the huge desert disc locked the Holy Land Mary Joa!

Rowan declared to the world:

Your emperor is back!

- Description from novelbuddy

Derek McCoy was a man that since his youth had to face many adversities. Often forced to settle with surviving rather than living, had finally found his place in the world, until everything was taken from him one last time. After losing his life to avenge his brother, he reincarnates until he finds a world worth living for, a world filled with magic and monsters. Follow him along his journey, from grieving brother to alien soldier. From infant to Supreme Magus.

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Tags: Transmigration, Male MC, Western Fantasy
Schedule: 1 chapter per day
Chapter Lenght: 1700 - 2000 words but usually are even longer
Warning: The MC is not an hero nor an anti-hero. He is a broken, cynic and misanthropic person looking only for his own gain. If you are looking for a forgiving, nice, MC that goes around saving people in distress, this is not your cup of tea.
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I don't own the cover but wasn't able to find the author.

This crossing is so strange, death crossing, game crossing, etc. are probably barely acceptable, but why can you cross even if the fish tank is broken?

and actually passed through the magic tree in “OVERLORD” that is said to be able to destroy the world?

No! It is sad enough to regenerate into a plant. The protagonist, Ainz Ur Gong, the undead king, has also accepted the adventurer’s guild mission and wants to kill me!

I want to change my destiny! Live! I want to-surrender!

Ainz: Since he has accepted the job commission from the Adventurer’s Guild, deliberate failure is detrimental to the prestige of Ainz Ul Christine (the “surrender” button has been deducted)

actually died as soon as he crossed, but there is still a chance to return~ from the beginning of the magic tree to this world.

I must change my destiny this time! Live!

- Description from novelbuddy