Keizô Kusakawa

Three teenagers receive mysterious letters that transport them to another world. This world is known as, "Little Garden". Here, the inhabitants use their beyond human gifts to compete in games that range from simple tasks, to duels; sometimes even betting the very gifts that brought them there. (imdb)

Sekirei is an anime series based on the manga of the same title by Sakurako Gokurakuin. Produced by Aniplex and Seven Arcs and directed by Keiz? Kusakawa, the story revolves around a college student named Minato Sahashi, whose entire life changes when he meets a Sekirei named Musubi, and later gets involved in a deadly survival game between Sekireis and their masters, or Ashikabis, called the Sekirei Plan. (wikipedia)