A blade of the finest quality forged by Kyūketsuki and named for its chakra stealing abilities. It is exquisite in both form and use, a dual edged blade that mimicked the shape of a roaring flame, a hilt of obsidian, and a chain of "infinite" length hidden within the hilt which would only respond to his chakra. This blade was developed to steal the chakra from opponents with every connecting attack, and store them within, making it a “living” but not sentient blade. He crafted it of Crusentu, a metal darker than night and near indestructible. This is the sword Kyūketsuki uses for his Slashing Black Flame blade-style.