The story revolves around Saikawa Souhei, a member of the Saikawa Research Lab. He goes on a vacation held by the lab, and Nishinosono Moe, the daughter of his mentor, joins the group on their vacation despite not being a part of the lab. There, the two end up finding a corpse. The two work together to solve the mysteries of what becomes a serial murder case.

Това аниме е за хора, които са твърде мързеливи да четат.