Kusakawa Keizō is a storyboard artist and director at Seven Arcs who's best known for taking over the Lyrical Nanoha franchise. Early in his career, he worked closely with Shinbou Akiyuki and picked up experience across several Shaft productions. When Shinbou moved on from Seven Arcs, Kusakawa stepped in as director for the series, starting with the second season, Mahou Shoujo Lyrical Nanoha A's, and has remained involved with the franchise since.