Three books from the Shinjuku Shark series by Arimasa Osawa. Each volume unfolds a unique story. ・II Poison Monkey ・III Corpse Orchid ・IV Endless Doll The "Shinjuku Shark" series is a hard-boiled novel series by Arimasa Osawa. It has also been adapted into films, TV dramas, and manga. The series is a police novel series featuring Inspector Samejima of the Shinjuku Police Station as the protagonist. To break the constraint that real police investigations are conducted by teams, the setting involves a career police officer caught up in internal police conflicts and becoming a loner. These are used books. There is yellowing. Please understand. Thank you for looking.