The manga series centers on Conan Edogawa, the alias of detective Shinichi Kudo, whose body shrunk after being poisoned at the beginning of the story. Together with detective Kogoro Mori and his daughter Ran, Conan helps the police solve difficult mysteries.
Detective Conan has been running since 1994 and has spawned an ongoing anime series, and a yearly anime film series. The 21st film in the series, Meitantei Conan Kara Kurenai no Love Letter (Detective Conan: Crimson Love Letter), opened on April 15, and earned the highest opening weekend record for the franchise. Aoyama's various manga series have a combined 200 million copies in print worldwide.
Source: The Mainichi Shimbun's Mantan Web