Sekirei (セキレイ, Sekirei? lit. Wagtail) is a Japanese manga series by Sakurako Gokurakuin. Originally starting serialization in the seinen magazine Young Gangan published by Square Enix in June 2005, Sekirei is an ecchi manga aimed at young men. The manga stars a male named Minato Sahashi, a typical Keitaro-grade loser, and has even failed college examinations twice. His life changes, however, when he meets Musubi. Unknown to him at the time, Musubi is a Sekirei, an artificial life form designed to fight others of her kind. An anime adaptation produced by Seven Arcs and directed by Keizō Kusakawa was aired in Japan between July 2008 and September 2008.