When her biological father, whom she'd never known she had, brought her to Wayne Manor, Dana felt both excited and nervous.
Her father was the most handsome and richest man in all of Gotham, and her siblings were all handsome, beautiful, and brilliant.
But on her very first day at the manor, sharp-eyed Dana noticed the barely concealed hostility and scheming beneath the seemingly peaceful banter between her siblings.
It came to her: no big family is complete without a fight over the inheritance!
...She figured she might die in the family inheritance drama before she ever got to enjoy the wealth.
So she posted on a forum asking for help.
[Help! My billionaire dad just brought me home, and I've discovered that my siblings seem to be secretly fighting over the inheritance. I don't want to get taken out. I just want to coast along and enjoy the good life. Does anyone online have any advice to help me get through this?]
OP: Here's the thing: I live in the city with the highest crime rate in the United States. Gang shootouts and kidnappings are commonplace here. You have to worry about getting caught in the crossfire just walking down the street. I'm really afraid my siblings will hire someone to kill me over the inheritance.
User 1: Hilarious. The city with the highest crime rate in the United States? You're not about to say you live in Gotham, are you?
OP: Yeah. I live in Gotham City. Do you live here too? Then you must know how dangerous it is!
User 1: I live on Happy Planet.
User 3: I live in Night City.
User 2: Your dad's a billionaire? Is your father Bruce Wayne? I've seen enough ads for novels like this. Cut to the chase and just list the cast already.
OP: Huh? People write novels like that? But my dad really is a Wayne.
User 3: Sure. Do you believe her dad is Bruce Wayne, or that I'm Qin Shi Huang? If you're really a "Miss Wayne," why not hire Batman to protect you?
Dana was enlightened: Right, she could hire Batman! Batman was always fair and just. He'd never let anything like that happen!
When Batman received his daughter's letter hiring him to deal with her other children, he fell into a long silence.
After that, Dana also began posting about the trouble she ran into and asking forum users for help.
[My third older brother took me out, then left me behind when we ran into robbers. If Red Robin hadn't shown up in time, I would've been kidnapped.]
[Guys, my siblings are grilling me about which Gotham superhero I like best. If I give the wrong answer, will they kill me?]
[I went to a parent-teacher meeting for my younger brother and found him sneaking around in an alley with the kid from the Kent family in the next class. Is he dating already?]
[My siblings are always getting hurt. Could they be getting bullied?]
Even though all of Dana's posts sounded completely real, forum users still refused to believe she was the Miss Wayne from another dimension and insisted she livestream to prove it.
With her family's permission, Dana started a livestream. The chat went wild, screaming their heads off and calling out her family's names.
Later, through the cross-dimensional livestream and forum, Dana learned that her family were all hugely popular comic book characters.
On the surface, they were idle rich people. Behind the scenes, they were Gotham City's masked vigilantes.
Dana was horrified: Had she hired her dad to go after her brothers before?
After that, Dana discovered that she could receive items tipped by viewers watching the livestream, delivered directly across worlds.
The Robins patiently taught rookie Dana the rules and code of conduct for being a vigilante.
Nightwing: This steel fortress is incredibly tough. We can't break through from the front, so we can sneak in through the ventilation ducts.
Dana, wearing a suit of armor and blasting the steel fortress into the sky: Huh? We can't break through from the front? For real?
Thanks to her hugely popular livestream, Dana received tips from powerful figures in various worlds and gained all kinds of equipment and superpowers.
One day, the big shots from other worlds who had gifted Dana's livestream with moderator upgrades suddenly received a moderator gift: an interdimensional travel voucher.
The criminals of Gotham City, after being beaten up by big shots from other worlds, said: Weren't you telling us the new Robin was a spatial-pocket type? Why is she a summoner?!
Theme: Haven't thought of one yet.