[Western Crossover] When a Pirate Fan Became Batman's Kid

One day, a mysterious, unknown being appeared before a young girl.

[I can grant you one wish.]

The girl froze for a moment, then voiced the wish she had held for years:

-I-I want to transmigrate to the world of One Piece!

[All right.]

But she had made that wish so sincerely, so why had she ended up on a different Earth, one swarming with aliens and crawling with superheroes and supervillains?

And to top it all off, the noble she hated most had taken her in!

Anita: Thanks for asking, but all I want is to be a pirate and save Ace!

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P.S. The heroine inherited the bloodlines of both the Waynes and the Rogers (don't ask, just blame God), but what she inherited most was the nature of the D clan. I like to think of the so-called [D] as a heart that seeks freedom and loves adventure. So although the heroine has lived in modern society in both her past and present lives, you could think of her as half Luffy, with a little bit of common sense.

Also, there are lots of original settings, so please don't overanalyze them. Thanks.

P.P.S. The heroine is the same age as Tibo.

Theme: Saving big brother is every One Piece fan's obsession