Detective Conan is a comic written by Japanese cartoonist Aoyama Gōshō. The theme of this comic is detective plot. Jimmy Kudo, a High school student detective, became a schoolboy after being poured in APTX4869 poison by the mysterious Black Organization. As a result, Jimmy Kudo had to conceal his identity to investigate the Black Organization and solve varies of cases.
Jimmy Kudo, a High school student detective, is called the savior of Japanese police or Sherlock Holmes of Heisei. One day, Jimmy Kudo went to amusement park with his girlfriend. He discovered 2 strange men in black. According to his instinct of a detective, Jimmy Kudo fellow the tracks of those 2 men until they arrived the exchange.
But one of them knocked down him and poured the APTX4869 poison into his mouth to make him to death. However, Jimmy Kudo became a child because of its side effect. In consideration of that the men in black would hurt his family and friends if they knew he was still alive, Jimmy Kudo changed his name to Edogawa Konan and lived in the house of his girlfriend, Mouri Ran. Meanwhile, he can use Mouri Ran’s father Mouri Kogorou, who was also a detective to find the men in black. To his surprise, Mouri Kogorou was a silly man. Therefore, Edogawa Konan used watch pattern tranquilizer gun to make Mouri Kogorou fall asleep, then imitated him to finish the cases. At that time, Conan got lots of good friends and tried his best to find Black Organization.