Conan Edogawa is the alias used by Shinichi Kudo in his shrunken form. Indeed, he took the appearance of a 7 years old boy after being forced to swallow a poison, a prototype called the APTX 4869, by two men in black later revealed to be members of the Black Organization. Besides his changed appearance, the poison did not inflict any other damage and therefore he still has the brain and mind of an adult. He's able to use his gifted powers of deduction to solve cases and eventually close in on the Black Organization in the hope of finding an antidote to the APTX 4869. Conan is often treated as a separate character from Shinichi by fans, and often viewed as the main character of the series while Shinichi is viewed as a recurring character. He has become a popular figure in Japan and even appeared at numerous occasions in different anime series (i.e. mainly cameo appearances) as well as other medias.