Detective Opera Milky Holmes: Summer Special is a special anime that premiered in summer 2011.

About the production: the story comes from a other, there is 1 episode of about 25 minutes and its current status is "finished".

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

On AniList, Detective Opera Milky Holmes: Summer Special has an average score of 67%, a good score, and appears on 2,713 users' lists.

A special program of Tantei Opera Milky Holmes produced by the staff of the TV series. After some pushing by Irene and her father and a lack of support otherwise, Kokoro stubbornly quits her job as a police detective to become an idol. She soon finds the idol life draining and starts to miss her old detective life. When Henriette notices Sherlock's loneliness without her, she stages a statue theft in order to convince Kokoro to return to the force. (Source: AniDB)

Official synopsis from AniList.