I'm Bruce Wayne, and I'm Also Cosplaying

As one of the most popular superhero franchises in this world, the Justice League has always been a hot topic.

The endless fan creations and official and unofficial conventions show just how obsessed the public is with superheroes.

So there's nothing wrong with a rich guy who's one of the organizers of a Gotham convention, and happens to be a fan, getting the whim to cosplay as his own original character, right?

Even if the character looks a little like a villain, with a black leather jacket and green eyes.

And maybe the concept is a little absurd.

For example, he's connected to almost every superhero and has complicated relationships with some of the famous bird-themed vigilantes.

But he's just an original character. As long as he doesn't tell anyone, it won't cause any trouble, right?

It's just a rich fan's tiny little personal indulgence!

The pale-skinned Gotham billionaire blinks his innocent green eyes as he answers the voice that suddenly appears.

"I have to save this world?"

[Don't worry, I'll support you from here.]

The fluffy white ball that calls itself the World-Saving System bounces happily twice.

[Host, with my help, you'll be able to fully inhabit the role and play Batman's counterpart in front of him! Just follow the script I give you and make the heroes of this world stay on guard for what happens next!]

[Collect emotional energy and wait for the timeline to finish, and then you can go home!]

"Oh, that doesn't sound too difficult."

The rich guy speaks in his honey-smooth voice, his emerald eyes clear as a lake.

He reaches out and pets the System's lovely, high-quality fluff, narrowing his eyes happily.

[Yep. Don't worry, Host. You're the perfect person for this job. You'll definitely save this world!]

[By the way, Host, what's your name? That way we can keep in touch. Hehe.]

"Bruce."

[Huh?]

"My name is Bruce Wayne, little System."

[I was such an idiot, really. When Bruce told me his name, I should have realized something was wrong. No matter which Bruce it is, he's never an ordinary person! Especially Bruce Wayne in a black leather jacket with green eyes!]

"So, did you succeed?"

[...We succeeded.]

*Updates whenever inspiration strikes. Written for love.

*The author's writing is amateurish, and the characters may be out of character. The source material and timeline have been heavily altered.

*SuperBat, with a little BatBird (though most of it is SuperBat, and BatBird can be read as familial affection).

*This is a weird thing the author wrote for themself. There's no outline, and I'll write whatever comes to mind.

*Dark Multiverse setting. Anything can happen.

Theme: Filling the emptiness in one's heart.