We do stuff here

Cautious, he starts to explore this strange land, rappelling from floating island to floating island.

He gets trapped on one of the islands, owned by a very overexcited girl his own age. She has white hair and green eyes, her name is Dani, and she is very clearly lonely.

Dani tells him this is the Infinite Realms. Dani tells him he is a guest in her island.

Dani tells him that he can't leave until she lets him, per The Rules.

While she can float on and off the island, Damian cannot. The only reason he was able to land on the island at all, on her island at all, was because the floating island he was on had been passing hers by.

And that rarely happens.

And Dani is not inclined to let him leave.

To be fair, he is treated very well for a prisoner that isn't a prisoner. He can go wherever he wants on the island, he can eat whatever is prepared and ready, he has access to clothing both simple and extravagant...really, the only thing he isn't allowed to do is leave.

He can't attack Dani, because his weapons don't work on her. He can't attack her with a weapon made from his surroundings, because if he does that, then he really will be stuck.

Plus, he would feel...bad. Dani is, again, clearly a lonely...whatever her species is. She thinks he's her friend, for all that she only shows up on the island sporadically.

He isn't allowed to leave Dani's Haunt, and were he free, perhaps he too would view her as a friend.

As it stands, he can only see her as his warden.

After seven years of arguments and shouting and cold shoulders and mental breakdowns, she finally matures enough to see from his perspective, and steals him a metal ship specifically meant for roaming the Infinite Realms. She also grants him weapons meant to take on beings like her.

She has stolen seven years of his life, and Damian hates that he can't hate her for it.

After all, from what he can tell, her species ages slower than his does, and she's just a child who hasn't aged once in the seven years he's known her.

But he has.

He leaves her island, and finds himself hailed from other people like him on another island. They're...sort of glowing? But not really. Not like Dani was.

And Damian is curious. He goes to take a look.

It's some other humans, like him. They've been trapped on an island that, although it is built upon, does not appear to have an owner, or the owner never shows their face.

Damian lets them aboard his ship, because if he's leaving he's taking these other trapped humans with him. Their names are Kwan, Dash, Dale, Paulina, and their apparent leader, Valerie.

What follows is hell.

Not because of them, but because their island wasn't as abandoned as they thought. There was a being, like Dani, that lived on it. Older than her, this being had white hair and green eyes, and very much looked like it could be related to her.

The being attacked him, trying to get to the humans behind him, and Damian...well, Damian fought back, with the help of Valerie.

But Damian landed the final blow, after severely underestimating how strong one of the weapons Dani gave him was.

Damian won after blasting a hole through the being's chest.

This...was a mistake.

That being was, apparently, the son of the Tyrant of the Infinite Realms; Pariah Dark.

That being was the High Prince.

Damian finds himself hunted, with denizens of the Realms refusing to help him once they learn who's ire he's earned, and suffers.

He's given an artifact that will point them to a natural Portal back to Gotham, his Gotham, and Kwan and Dash accidentally break it. The ghost that granted them the artifact refuses to gift another, realizing they are Hunted by Pariah Dark.

He runs into a group of glowing green blobs that try to eat his new friends, severely damaging the ship.

They get stranded on an island owned by a being called Undergrowth, where Kwan and Paulina get eaten by and turned into plants.

Thus, Damian traded a year of servitude to change them back into human, and was trapped for yet another year.

They leave and skirt by the island owned by some sort of blue-haired siren denizen, only to get into a fight with the Realms version of a Warden, losing Dash and Paulina in the fight.

Damian, deadset on getting back home, told everyone there would be no more stops, but was overridden at the sight of a gorgeous jungle island.

That island belonged to a being called Skulker, and Valerie made a grave mistake by hunting on of Skulker's prey while on the island.

The ship is destroyed in Skulker's rampage, and all three of the human's he'd been fighting so desperately to save were lost. Damian, desperate not to fall, ended up grabbing onto a very small floating island, more of a rock, before falling off of it after an indeterminate amount of time.

Damian is, once again, alone.

Damian is, once again, on Dani's island, where he landed after falling.

He's right back where he started.

But Dani, after expressing nothing but joy at seeing him again, comes back to her senses.

She gets another being from the Realms, one by the name of Clockwork.

Clockwork, who tells him something he'd been deliberately not thinking about.

He's been trapped in the Infinite Realms for twenty years.

There's no telling how much he's missed, but from the brief flash of what Clockwork showed him, his assumed death was not well-received.

But Clockwork makes a bargain with him.

Clockwork will return Damian to his own time, altering it so that it's only been a few weeks, so long as Damian dismantles something called the GIW.

The catch is that Clockwork can only deage his body so much, and Damian will be going back as an 18 year old; seven years older than he was when he left.

Damian, desperate, agrees.

Clockwork reaches out his hand...and Damian wakes up on a rooftop, in a younger body, dressed in regal robes from Dani's island.

The robes are a message; that it was not a feverdream.

If Damian wants to stay in Gotham, in his home dimension, he needs to take down the GIW as soon as possible.