Detective Opera Milky Holmes: Alternative is a special anime that premiered in summer 2012.

About the production: the story comes from a other, there are 2 episodes of about 24 minutes and its current status is "finished".

Its main genres are comedy and mystery, with themes such as Detective, Surreal Comedy and Cute Girls Doing Cute Things.

On AniList, Detective Opera Milky Holmes: Alternative has an average score of 62%, an average score, and appears on 2,251 users' lists.

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. (Source: AniDB)

Official synopsis from AniList.