One Piece: I Have a Date with an Evil God

After transmigrating into the world of One Piece, Ron, Nicole Robin's twin brother, witnesses the Marines' brutal crimes at Ohara and vows revenge against the World Government.

Just then, he finds himself in a mysterious space.

It's packed with distinguished guests, each a demon or evil god powerful enough to destroy the world, and they're all so charming.

More importantly... every one of them needs Ron's help.

Ron: Well, what are we waiting for? You got it!

Lilith, a demon from the hell of the Dark World, wants the flesh and blood of powerful beings from other worlds?

No problem!

I've got as much as you want!

Is that enough, kid?

The Dark Titan from World of Warcraft wants to find a new universe to call home?

Easy.

What's one little world? You can have it!

The great evil god Zuo Ke from the card game world wants to spread darkness and negative emotions?

You've got to be kidding!

What you call darkness would be nothing more than a lightbulb in the world of One Piece!

Come learn what true darkness is!

As one evil god after another appears, Ron gains more and more powers and authorities.

Until...

Wait a second!?

Majin Buu?

Which department are you from!?