Sephiroth is a mysterious swordsman with a connection to Cloud's past. Cloud considers Sephiroth a representation of his own inner darkness. He, along with Cloud, Tifa, Aerith, Yuffie, Zack, and Cid, originate from the Squaresoft game Final Fantasy VII, where he served as the main antagonist. So far, Sephiroth is the only main antagonist from the Final Fantasy franchise to appear in the Kingdom Hearts series.