Decay of Angels

Kamui (Ochi Fukuchi): Leader of the organization, also known as Mirror Lion. Fyodor Dostoevsky: Leader of the Rats in the House of the Dead and strategist for the group. Nikolai Gogol: A member known for his "clown" persona. Sigma: The manager of the Sky Casino and the newest, unwilling member. Bram Stoker: Known as the Undead King.

The Guild

Francis Scott Key Fitzgerald: Ability: "The Great Fitzgerald". Lucy Maud Montgomery: Ability: "Anne of Abyssal Red". Margaret Mitchell: Ability: "Gone with the Wind". Edgar Allan Poe: Ability: "Black Cat in the Rue Morgue".

Port Mafia

Ryūnosuke Akutagawa: Ability: "Rashōmon" (transforms clothing into a monster). Chūya Nakahara: Ability: "For the Tainted Sorrow" (gravity manipulation). Ōgai Mori: Mafia leader; Ability: "Vita Sexualis". Kōyō Ozaki: Ability: "Golden Demon". Ichiyō Higuchi: Port Mafia member (no ability). Motojirō Kajii: Ability: "Lemonade" (creates explosives). Sakunosuke Oda: Ability: "Flawless" (premonition). Kyūsaku Yumeno (Q): Ability: "Dogra Magra" (psychological manipulation).

Armed Detective Agency

Atsushi Nakajima: Ability "Beast Beneath the Moonlight" (white tiger transformation). Osamu Dazai: Ability: "No Longer Human" (nullifies others' abilities). Doppo Kunikida: Ability: "Doppo Poet" (creates objects from his notebook). Ranpo Edogawa: Ability: "Super Deduction" (solves cases instantly). Jun'ichirō Tanizaki: Ability: "Light Snow" (projects illusions). Kenji Miyazawa: Ability: "Undefeated by the Rain" (enhanced strength). Akiko Yosano: "Thou Shalt Not Die" (healing ability). Yukichi Fukuzawa: Agency president; Ability: "All Men are Equal". Kyōka Izumi: Ability: "Demon Snow".