Kuroshitsuji: Phantom & Ghost

A Nintendo DS game released as part of the Kuroshitsuji universe.
The story is original and takes place between Chapter 13 and Chapter 14. The basic plot is that the Phantomhives are sent to the haunted Brighton mansion by Queen Victoria because of the recent sightings of ghosts on the property, which she would like him to resolve. Manga creator Yana Toboso oversaw the story and created new characters for the game.