One Piece: The Archangel's Manifesto

[Villains of Unknown Origin Recklessly Challenge Justice!]

[Naturally Evil Brats Are Secretly Proliferating!]

[Lunarian Remnants Have Reignited from the Ashes!]

[The Great Archangel Will Reign Supreme Over the Entire Sea!]

[The Red Continent Will Soon Welcome Back Its True Master!]

............

In the Great Pirate Era, the seas are in turmoil as warlords carve up territories.

The young Louis sets sail from Sky Island—Birka, launching a vengeful counteroffensive against the World Government. Tooth for tooth, blood for blood.

Make the Lunarians Great Again!!

[TL;DR: Fetal Transmigration + Lunarian Clan + Innate Monster + Paramecia Life Fruit.]