Chobits
"Chobits" was adapted as a 26-episode-long anime television series broadcast on TBS and Animax from April to September 2002. In addition, it has spawned two video games as well as various merchandise such as figurines, collectable cards, calendars, and artbooks.
X (manga)
After the success of "Tokyo Babylon" and "Clamp School Detectives", the members of Clamp were approached by their editor at "Monthly Asuka" to script a longer series. Nanase Ohkawa, the group's head writer, seized the opportunity to script her long-in-development "end of the world" epic. Conceived while she was still in middle school, Ohkawa's original story focused on a group of warriors fighting a losing battle in the name of "justice". While the idea never materialized, many aspects were carried over into Clamp's manga, including the lead characters of Kamui and Fuma.