Synopsis

34-year-old Hamura Akira loves mysteries. She is a part-timer at a secondhand bookshop called Murder Bear Bookshop while she works as an investigator of Shirokuma Investigation Agency in what started as a joke with the owner Muraki Yoshihiro. Akira strives to solve cases with the help of Muraki Yoshihiro, detectives Hayami Osamatsu and Shibata Kaname from Kageyama Higashi Police Precinct. Superintendent Okada Shotaro from the Tokyo Metropolitan Police Department is the only one among them that she respects for his intellect. Akira has a tendency to get caught in misadventures one way or another, and is known as the world’s most unfortunate private investigator. But as she confronts cases, she also has to face her own life. One day, Akira’s older sister Suzu visits her. Akira dislikes Suzu who has given her a hard time all this while. Suzu hands her a ticket for a trip overseas to apologise for everything that has happened so far and coerces her to go. Meanwhile, the dead body of a woman is discovered in the mountains. The name stated on her identity card is Hamura Akira?!