Clamp School Detectives , also known as CLAMP Campus Detectives, is a manga series by Clamp, which was adapted into a 26-episode anime series, produced by Bandai Visual and Studio Pierrot. The manga series was serialized in Kadokawa Shoten's Monthly Asuka manga magazine between January 1992 and October 1993, spanning three tankōbon, while the anime premiered in Japan on TV Tokyo between May 3, 1997 and October 25, 1997.
Cover of Clamp School Detectives volume 1 as published by Kadokawa Shoten
Clamp is an all-female Japanese manga artist group, consisting of leader and writer Nanase Ohkawa, and three artists whose roles shift for each series: Mokona, Tsubaki Nekoi, and Satsuki Igarashi.
Clamp at Anime Expo 2006. From left to right: Satsuki Igarashi, Nanase Ohkawa, Tsubaki Nekoi, and Mokona.
Clamp's cross-referencing and storytelling led to characters being re-used in different ways. Left: Syaoran Li, originally from Cardcaptor Sakura. Centre: Syaoran as he first appears in later work Tsubasa: Reservoir Chronicle. Right: an alternative Syaoran who appears later in Tsubasa.
A group cosplaying three Clamp characters: Sakura (top left) and Syaoran (top right) from Tsubasa: Reservoir Chronicle; and Yuko Ichihara (bottom) from xxxHolic.