One Piece: The Mythical Zoan Taotie Eats His Way to Becoming One of the Four Emperors

[Invincible Protagonist] + [Mythical Zoan] + [Ruthless Slaughter] + [No Saintly Heroics] + [Everyday Overprotectiveness]

After transmigrating into the world of One Piece, Bai Ye becomes a menial worker in the hold.

After three days without water or food, he is on the verge of death when Luoxue, a girl who is also a slave, secretly slips him half a clean loaf of bread.

But the brutal pirate captain decides to have some fun and forces an unknown Devil Fruit into Bai Ye's mouth to test it!

Unexpectedly, it turns out to be the Gluttonous Beast Fruit, awakening an ancient mythical bloodline.

[Zoan · Mythical Zoan · Gluttonous Beast Form]!

If ordinary food can't fill his stomach, then he'll eat swords and guns!

If ordinary steel can't nourish him, then famous swords, Seastone, and ancient Sea Kings can all become nourishment for the evolution of his body!

And eventually...

Logia flames and lightning? An admiral's Haki and elemental transformation?

Bai Ye: “Sorry, in front of the Gluttonous Beast's stomach, your ultimate moves are just dessert after a meal.”

Many years later.

When Bai Ye brings his monstrous crew to the Red Line for the sake of the girl who once gave him half a loaf of bread,

he looks down at Marine Headquarters, the Shichibukai, and the Five Elders, all waiting in battle formation.

Bai Ye transforms into an ancient calamity beast that blots out the sky, opening a vast abyssal maw capable of swallowing space. His smile is chilling:

“I hear Mary Geoise is hiding the World Government's greatest national treasure?”

“Sorry, but it looks... like it'd go great with a meal.”