Blue Drop (ブルー ドロップ Burū Doroppu) is a Japanese science fiction yuri manga created by Akihito Yoshitomi. It comprises five chapters that were serialized in the shōnen manga magazine Dengeki Comic Gao! from June 2004 to December 2005, and later collected into a single volume. In 2007, Yoshitomi began to work on a new Blue Drop manga, titled Blue Drop: Tenshi no Bokura (BLUE DROP ～天使の僕ら～), which was serialized in the manga magazine Champion Red between February 19, 2007 and January 19, 2008, with its 14 chapters later compiled into 2 volumes. Each volume contained a chapter of another series called Tenshi no Itazura (天使の悪戯 Angel's Trick) where Kasagi is a member of an alien race of females called the Arume. She spends her time playing matchmaker for unsuspecting, cute human girls. The third