Case Closed, also known as , is a Japanese detectivemanga series written and illustrated by Gosho Aoyama. The series is serialized in Shogakukan's Weekly Shonen Sunday since January 19, 1994, and has been collected into 88 tankobon volumes. Due to legal considerations with the name Detective Conan, the English language release was renamed to Case Closed. The story follows Kudo Shinichi, an amateur detective who transformed into a child while investigating the Black Organization.