Batman Gets Possessed by Batman. I Must Be Dreaming, Right?!

Player transmigration, what?! It's actually me?! Then why the hell would I transmigrate at all?!

In his later years, Batman is unexpectedly selected by a system that randomly recruits players to save the multiverse. The System mistakes Batman for a player, accidentally granting him a player system. To maintain the stability of the multiverse, Batman has no choice but to play himself, embarking on a one-way road. Arkham, Flashpoint, and more keep turning Batman's worldview upside down. What do you mean Superman turned evil? What do you mean Jason's driving a tunnel-boring machine and wants to run me over? What do you mean I've been mind-controlled? The players' shameless antics leave him utterly stunned. Batman? Batman decides to join them. No CP (canon couples aside, Superman and Lois), pure platonic relationships.

Theme: Maybe my existence is fictional, empty, and meaningless, just a character on a page. But now I know that in another world, there are people who look forward to seeing me, people who trust me. My actions and existence can become their emotional support, or someone they admire and hope for. So Batman still has a reason to exist, and that makes him worth continuing to fight for.