仮面ライダー剣
is a Japanese screenwriter. Active in various fields (and credited through various pseudonyms) since he was 17 years old, the most popular works he has helmed have been in anime and tokusatsu: "Dangaioh", "Angel Cop", "", "Martian Successor Nadesico", "Love Hina", "The Twelve Kingdoms", "Fullmetal Alchemist", "Kamen Rider Blade", "GoGo Sentai Boukenger" and "Concrete Revolutio".