Himatsubushi-hen (暇潰し編, Time Wasting Chapter), is the fourth and last question arc in the Higurashi no Naku Koro ni series, released on August 13, 2004. It is shorter than the previous arcs, with only two chapters, and takes place five years before them. It is preceded by Tatarigoroshi-hen and is followed by Higurashi no Naku Koro ni Kai, beginning with Meakashi-hen. Himatsubushi-hen revolves around the experiences of Akasaka Mamoru, an investigator from the Metropolitan Police Department in Tokyo. It also continues to reveal a more mature and moving side of Furude Rika.