Trickster: Edogawa Ranpo "Shounen Tanteidan" yori OVA  

TRICKSTER -江戸川乱歩「少年探偵団」より- OVA, Trickster Episode 00, TRICKSTER -江戸川乱歩「少年探偵団」より- OVA

In the initial installment, we'll delve into the history of the relationship between detective Kogorou Akechi and the enigmatic Fiend With Twenty Faces. Meanwhile, the second episode will explore the events that transpired prior to the formation of the Boy Detectives Club, specifically focusing on the period when Kobayashi and Hanazaki first crossed paths.