In the 2030s, the Boy Detectives Club gathers around mysterious detective Kogoro Akechi. The group solves cases large and small with their unique abilities. One day, club member Kensuke Hanazaki meets boy Yoshio Kobayashi, whose body cannot die due to "Unidentifiable Mist" but yearns for death. Encouraged by Hanazaki's interest, he joins the Boy Detectives Club, linking fate to Kogoro Akechi and the era's greatest villain, the Fiend With Twenty Faces.
Trickster
The year is 2030. The Boy Detectives Club convenes under Kogoro Akechi, the enigmatic detective. Members employ diverse talents to unravel both major and minor mysteries. Amidst their adventures, Kensuke Hanazaki encounters a young boy named Yoshio.