Queen's Blade (Japanese: クイーンズブレイド, Hepburn: Kuīnzu Bureido) is a Japanese series of visual combat books published by Hobby Japan inspired by the licensed works from Firelight Game Company's Lost Worlds. The overall plot of the game revolves around a tournament called the Queen's Blade, which is held once every four years to determine a Queen. Since its original release, the series has evolved into a media franchise, spanning four manga adaptations, three anime adaptations, three light novels, and a video game adaptation. Figures of the characters made by various manufacturers, such as Kaiyodo with their Revoltech series, have also been produced along with several memorabilia. A sequel series, Queen's Blade Rebellion, was launched in 2009.
街道を遠く離れ、白骨が散らばる荒野の果て、断崖のふもとで刺客と対峙する髪の長い少女レイナ。貴族の身分を捨て己の実力を試す旅に出た彼女は、様々な出会いを通じ、傷つきながらも成長した。そして、彼女はクイーンズブレイドへの参加を決意する。それは神の名の下にもっとも強く美しい女王を選ぶ闘技大会であった…。