Legal Drug is a manga series by Clamp. The main artist in this serialization is Tsubaki Nekoi. It is published in Japan by Kadokawa Shoten and it is published in English by Tokyopop who have currently
Cover art from volume 3 of the English release of Legal Drug, published by Tokyopop
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.