Shinichi Kudo is one of the world's foremost detectives, and he's only in high school. and having surpassed 1000 issues, it's in 23rd place in terms of manga volumes. Seriously, with over 1000 episodes, the anime is currently at 16th place in terms of total number of anime episodes, note or 10th that is still in production. The manga began serialization in 1994 and the anime began airing in 1996 both are still ongoing. Case Closed (aka Detective Conan), written/drawn by Gosho Aoyama ( Magic Kaito and Yaiba) and published in Shogakukan's Shonen Sunday, is a very long-running manga and anime series.