[Crossover] Causing Chaos Every Day

How did Gotham's Clown Prince of Crime's daughter go for a ride on a Ferris wheel and come down to find the world had changed?

Little Joker took a look around the new world and found someone she hated even more than Gotham's Big Bat: No. 1, the "Symbol of Peace."

She was a little unhappy at first, but then she was surprised to find several strange, overlapping marks on her hand, and learned about a cup said to grant any wish.

"Something this fun? I can't be the only one who gets to play. Everyone in the world, come join this game!"

"Let me help you recognize the desires in your hearts."

"Let me tear away this hypocritical facade and show you the city hiding beneath the heroes, just as it really is~"

Cause a little commotion, break the existing order, and then everything gets chaotic. I'm the embodiment of chaos, after all. Do you know what's so great about chaos, heroes?

It brings fairness.

[Content warnings] Causing trouble from start to finish, a mountain of headcanons, nothing can be scrutinized too closely, and the timeline does whatever it wants. Most of the original plot has been tossed out. Bad little Joker draws everyone's attention, everyone has a one-sided crush on her, and it's a brainless wish-fulfillment story. Pairing undecided.