Sephiroth is a character in the Final Fantasy series and the main antagonist in Final Fantasy VII. He is a former SOLDIER 1st Class, a military program of the Shinra Electric Power Company, and is known as one of the most sinister villains in the series. Sephiroth is tall, muscular, with silver hair and bright cyan eyes. He wears a long black coat with silver pauldrons, black boots, and black trousers, and his signature weapon is a longsword called Masamune.