[Machine Translation] What is Fumi's life? And what is the true identity of "Okita Soji"? The "Kindaichi Boy" series is now complete! Hajime Kindaichi, a sophomore in high school, is usually a droll, funny guy, but in fact he is the grandson of the famous detective, Kosuke Kindaichi! Once he gets involved in a case, he and his childhood friend, Miyuki Nanase, use their clear reasoning skills to solve the difficult tricks set up by the criminal! New title, more power! Hajime's brilliant deductions become even more brilliant! During the "Shinsengumi Festival", Hajime's cousin Fumi is kidnapped by someone claiming to be "Okita Soji". The kidnappers appoint six people with the same name as the Shinsengumi to deliver the ransom, and with the help of a clever text message, the kidnappers get the Shinsengumi members to board a train and outrun the detectives who are following them. Hajime continues his pursuit to the end, but the criminals finally notice him and he finds himself in a desperate situation! What will happen to Fumi's life? And what is the true identity of "Okita Soji"? The "Kindaichi Shonen" series is now complete!