A 16-year-old high school student Midori Matsumoto was found dead on the banks of the Tama River. The only clue is shoe marks on rubber soles. From the interview of witnesses, it became clear that Midori was walking with a guy last night. In addition, it turned out that Midori was close to a college student Kimoto, and a high school student Miyazaki. According to his friends, Miyazaki had an alibi, but Kimoto did not. A unique work in which the problems of teenage sex are considered from the point of view of the murder of a girl. The 21nd work from the popular series "Keishicho Monogatari", which documents the activities of the First Investigation Division of the Capital Police Department.

A man confessed to killing a woman in a labyrinth 2 years ago. The detectives must now conduct a "backing investigation" to determine whether his confession is true, because the law states that a confession alone is not enough to make the case. The 20nd work from the popular series "Keishicho Monogatari", which documents the activities of the First Investigation Division of the Capital Police Department.

While covering a test of guided torpedoes, two reporters believe they see what appears to be a strange-looking swimming creature. They investigate the matter further and discover that there is a race of fish-men living under the sea. The fish-men capture the pair and keep them prisoner in their underwater city.

The survivors of a plane crash in a remote area are attacked by blob-like alien creatures that turn their victims into blood-thirsty vampires.