Private detective, chohamashu (gyuzo) where it makes a specialty of a fickle investigation. Got information in a love hotel, and were investigating it, and heard the scream of a young woman today from the next room. While be hit by the man of the partner, Nan or shu rescue her. The woman of the So was memory loss. shu which decides that the place to come back through names Houko (Hatsune Minori) to her whom there is not and employs you as an assistant.