In 2001, "Young Magazine" began serializing Clamp's "Chobits" which completed its run in 2002. Although their previous works are targeted at a female audience, "Chobits" marked the first time Clamp wrote for an older teen male audience. Clamp began writing the two works that tell separate parts of the same overarching plot, "xxxHolic" serialized in "Young Magazine" beginning in 2003 followed by "" serialized in the "Weekly Shōnen Magazine" beginning in the same year. "Tsubasa" marked the first time Clamp had ever tried writing for a younger male audience, although their first work published in the Shōnen demography was "Angelic Layer"