My enthusiasm for Bungo Stray Dogs has faded a lot, and I can't continue updating this story for now. I'm terribly sorry!
The main setting is currently the Detective Conan world.
Yu-429, a System organism that coexists with humans, bonded with experimental subject No. J258 to ensure its healthy growth, forming a symbiotic relationship with its Host, Nakahara Chuuya.
The System provides its Host with material resources and ensures that its Host, Nakahara Chuuya, grows. In turn, by attaching itself to Nakahara Chuuya, the System records emotional abilities that help it grow.
The postwar Bungo Stray Dogs world is not conducive to a young child's survival. To ensure the healthy growth of both System and Host, the System chose to take its Host, Nakahara Chuuya, to other worlds to collect emotional energy. Their first stop was a B-rank fusion world known within the System as the Detective World.
Please note:
1. This is my take on Chuuya.
2. Conan, Katekyo Hitman Reborn!, and so on.
3. Chuuya x Dazai. Dazai will only appear when the story is in the Bungo Stray Dogs setting. For now, only Chuuya is in the Detective Conan world.
Extremely OOC.
If you think the writing is bad, it's definitely not your imagination.
Theme: Everything in the past is a prologue, and everything in the future is worth looking forward to