Conan Edogawa (江戸川 コナン Edogawa Konan?) is the alias used by Shinichi Kudo in his shrunken form. Shinichi took the appearance of his six or seven year old self after being exposed to a prototype poison called APTX 4869, which he had been forced to swallow by two men in black later revealed to be members of the Black Organization.[4] The poison de-aged Shinichi's entire body except for his nervous system and therefore he still has the personality, memories, and incredible deductive ability of his teenage self.