Info about staff & cast

Emi Nitta (Love Live!'s Honoka) will join the cast as super idol Marine Amagi. Returning cast members include:

Suzuko Mimori as Sherlock Shellingford
Sora Tokui as Nero Yuzurisaki
Mikoi Sasaki as Hercule Barton
Izumi Kitta as Cordelia Glauca
Yoshino Nanjou as Kokoro Akechi
Aimi as Kazumi Tokiwa
Ayasa Itō as Alice Myojingawa

The staff includes:

Executive Producer/Original Plan: Takaaki Kidani
Original Creator: Bushiroad, Chronogear Creative
Director: Hiroshi Nishikiori
Assistant Director: Hirokazu Hanai
Script: Tenga Komuro, Go Zappa, Shogo Yasukawa, Takayo Ikami, Hideki Shirane, Hyōichi Yokomizu
Original Character Design: Natsuki Tanihara, Yume Usahara
Character Design: Mariko Fujita
Music Producer: Daisuke Kikuta (Elements Garden), Noriyasu Agematsu (Elements Garden)
Music: Elements Garden (Daisuke Kikuta, Evan Call, Haruki Mori, Tomohiro Kita)
Sound Manager: Takatoshi Hamano
Animation Production: J.C. Staff/Nomad

The four main Milky Holmes characters (Suzuko Mimori, Sora Toku, Mikoi Sasaki, Izumi Kitta) will perform the theme song "Milky A Go Go," and Emi Nitta will perform the ending theme song "Tankyū Dreaming" (Quest Dreaming)

In the story, the Great Era of Detectives — when detectives and thieves with a power known as "Toys" compete — has given way to the Great Era of Idols. However, someone starts stealing the idols' songs in Yokohama. When super idol Marine Amagi's hit song "Kiseki no Uta" (Miracle's Song) is stolen, she enlists the detectives of Milky Holmes.