Case Closed, also known as Detective Conan (Japanese: 名探偵コナン, Hepburn: Meitantei Konan), is a Japanese detective manga series written and illustrated by Gosho Aoyama. It has been serialized in Shogakukan's Weekly Shōnen Sunday since January 1994, with its chapters collected in 99 tankōbon volumes as of April 2021. Due to legal problems with the name Detective Conan, the English language releases from Funimation and Viz were renamed to Case Closed. The story follows the high school detective Shinichi Kudo (renamed as Jimmy Kudo in several English translations) who was transformed into a child while investigating a mysterious organization and solves a multitude of cases while impersonating his childhood best friend's father and other characters.