Trickster

In the 2030s, the Boy Detectives Club works under the enigmatic detective Kogorō Akechi, solving cases both big and small with their distinctive talents. One day, club member Kensuke Hanazaki encounters Yoshio Kobayashi, a boy whose body is immortal due to the "Unidentifiable Mist." Though cursed with eternal life, Kobayashi longs for death and avoids human connection. Intrigued by him, Hanazaki invites Kobayashi to join the club. Their meeting becomes intertwined with the shared destiny of Kogorō Akechi and the era's most notorious criminal, the Fiend With Twenty Faces.