Bukyoku (武曲) is an "ochimusha" (落武者, lit. "defeated samurai") Shikigami used by Yura Keikain. He is the only of her shikigami shown capable of speech, and is voiced by Tōru Furusawa. His face resembles a skull with glowing red eyes, and the kanji on the flaps covering it's face say "Bukyoku." He is named for the Mizar binary stars of the constellation Ursa Major, which was called "Bukyoku" in scriptures from China's Tang Dynasty.