Bungo Stray Dogs: Mori Ougai, Beyond Humanity

Mori Ogai (Note: A transmigrator. His intelligence is slightly below Dazai Osamu's, but he is exceptionally good at disguising himself. Ranpo cannot see through him completely.) has been in the Bungo Stray Dogs world for over thirty years. One day, he dreams of himself at the age of twelve. But when he tries to recall the years before he turned twenty-six, he remembers nothing. Then the White Tiger appears, the main story begins, and one event involving the Book follows another. His true identity is gradually revealed. (There will be many crossovers with Detective Conan, Ye Luoli, and Dragon Raja. Mori's mysterious origins will be revealed in Ye Luoli and Dragon Raja.)

(There will be both BL and BG, and Mori might have no pairing, or he might end up with Fukuzawa. I ship Soukoku with no preference for either side. Also, Ye Luoli will break up Shui and Mo, and as for Dragon Raja, I think Lu Mingfei and Erii are better suited as siblings than as a couple, so Erii will have no pairing, while Lu Mingfei will be paired with Zero. If any of that bothers you, don't read. Also, the characterizations will be heavily distorted, and there are tons of headcanons!)