—Tōtōsai Tōtōsai (刀々斎, "Sword Purification") was an elderly swordsmith yōkai specializing in the demonic, who forged Tessaiga and Tenseiga from the fangs of his old friend, the Inu no Taishō. He spent most of his time at his forge inside a volcano, but sometimes traveled elsewhere on his flying three-eyed ox demon named Mō-Mō.