The Beautiful Boy in Black Who's Always Mistaken for a Villain

A being who calls itself the System of Maintenance finds him. It claims that, due to an unknown bug, beings of its kind have invaded other worlds. It hopes he can find these paranormal beings and retrieve them to protect the worlds.

"If you can pull it off, I can grant you one wish, within reason," the System says.

He unconsciously wears a subtle smile and answers with interest, "Sure. I'd be happy to do something like that."

A strange smile touches his pale, handsome face. "Come to think of it, even though we're the same kind, I've never really had a chance to play with them... That's all right. I'll make them realize their mistakes and protect the worlds properly."

[Reading Note]

1. The worlds are visited in this order: Bungo Stray Dogs, Jujutsu Kaisen, then Detective Conan. Each arc takes place in a single world. There aren't many paranormal beings in the Detective Conan world, so it's basically a retirement world.

Theme: love and being loved