Tantei Opera Milky Holmes Movie: Gyakushuu no Milky Holmes

"Sheryl, Nero, Elly, and Cordelia are the most popular students at Holmes Detective Academy, because of the many cases they've solved with their Toys and teamwork. The students and the people of the Detective City Yokohama all look up to the members of "Milky Holmes", as they're called. But on a dark and stormy night, during a battle with their rivals "The Gentlemen Thief Empire", they lose their toys, and their fate undergoes a dramatic change..."

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.

Milky Holmes is a detective team composed of four girls who descended from famous detectives and possess supernatural powers known as "Toys". In this alternative world, instead of losing their Toys and becoming worthless students, they are on the path to becoming successful detectives. Under the guidance of Kobayashi Opera, they work to solve mysteries.

Third season of Tantei Opera Milky Holmes.