I Transmigrated into One Piece and Became Invincible

I had barely transmigrated to the world of One Piece when I awakened the Majin System!

As an ordinary person from the Sabaody Archipelago, isn't it perfectly reasonable for me to protect myself?

No food? Turn pirates into little cookies.

Not strong enough? Turn pirates into little cookies!

Devil Fruits? Dogs wouldn't even eat that stuff!

What do you mean, what can I do without powers?

I'm Majin Buu. Ever heard of the Flying Nimbus?

Ever seen the Transfiguration Beam?

The Three Admirals? The Four Emperors? Are they really that strong?

Why not test the power of my telekinesis and finger beams?

What, you're strong? Then try not to run!

Once I eat you, your powers become mine!

No Haki of the Three Colors? Then I'll just eat some big-name pirates!

Beautiful women? I don't care if you're a pirate or a Marine, you're all mine!

You won't give in? Sorry, then I'll take you by force!

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.