The "Alley of Ghosts" is a well-known term for a certain back alley, where Gacharico the Ghost resides. However, only Miku, whose family runs the neighboring candy store, knows about this. Despite the regular appearance of the capsule machines in the store, they contain an array of unique ghosts with distinct personalities and abilities. When Miku's grandmother loses her dentures, it is up to Miku, with the help of Gacharico and the other ghosts, to retrieve them.