The official website of the The File of Young Kindaichi Returns anime announced that a one-hour special television episode of the anime titled "The File of Inspector Akechi" (Akechi Keibu no Jikenbo) will air on December 26. The site streamed a trailer on Sunday, which previews the episode and its story. The video also reveals that Yudai Chiba will play Ryūtaro Kobayashi, a junior detective under detective Kengo Akechi.
(Source: ANN)+ More
More Seasons
Characters & Voice Actors

Akechi, Kengo
Main
Morikawa, Toshiyuki
Japanese
Kijima, Youhei
Supporting
Sakuya, Shunsuke
Japanese
Kijima, Junichi
Supporting
Godai, Takayuki
Japanese
Kindaichi, Hajime
Supporting
Matsuno, Taiki
Japanese
Kobayashi, Ryuutarou
Supporting
Nanase, Miyuki
Supporting
Nakagawa, Akiko
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