Korsin Fei, also named Darth Adjucator, was a human male Sith Master, though going by the title Sith Lord, from Dromund Kaas. He served the Resurgent Sith Empire and was a close associate of the Sith Emperor, who taught him minor parts of the technique he used to achieve immortality. Korsin had a daughter named Kayala Fei, was training to become a Sith Warrior. During the Great Galactic War, he fought in numerous battles, and learned of a famous swordsman from Harima named Miyamoto Musashi. Thinking the young swordsman would be a great asset for the Empire, he told the Minister of Intelligence to recruit him, with the consent of the Emperor. After Miyamoto's recruitment, Korsin convinced the rest of the Dark Council to give the swordsman the honorary high title of Warlord, reserved for Sit