|Sekirei (セキレイ?, lit. Wagtail) is a Japanese manga series by Sakurako Gokurakuin. The manga began serialization in the seinen magazine Young Gangan published by Square Enix in December 2004 and the first tankōbon was released on June 25, 2005, with ten volumes available in Japan as of June 25, 2010. An anime adaptation produced by Seven Arcs and directed by Keizō Kusakawa aired in Japan between July and September 2008, and a second season aired between July and September 2010. Both seasons are licensed in North America by Funimation Entertainment. The central character of the series is Minato Sahashi, a ronin who failed college examinations twice. His life changes, however, when he meets a girl named Musubi.|
In Tokyo (known as Shinto Teito (新東帝都 Shintō Teito?, “New Eastern Imperial Capital”)) in 2020, 19-year-old Minato Sahashi has failed his college entrance exam twice. He is also inept around women, is unemployed, and is continually bullied by his mother Takami and his younger sister Yukari. In truth, Minato is extremely intelligent, yet his inability to cope under pressure results in his constant failure and he has been insulted by several people.
One day, Minato meets a girl named Musubi, who literally falls from the sky. Minato soon learns that she is a “Sekirei” who chose him as her “Ashikabi”, a human with special genes that allows them to “mark” (form a contract with) Sekirei. This binds the Sekirei to him and allows them to use their full power in the elimination battle with other Sekirei. Made up of cute girls, buxom women, and bishōnen, the Sekirei fight in a dangerous and sometimes deadly competition known as “The Game” or the “Sekirei Plan” organized by Hiroto Minaka, the chairman and founder of the mysterious and powerful MBI Corporation.
Minato soon learns that being the partner of a beautiful girl is not all fun and games, especially when several other Sekirei choose him as their Ashikabi, each also forming a contract with him. Now, Minato must find a way to survive both the life-threatening battles of the Sekirei Plan and his partners’ fierce competition for him.