Sephiroth is a fictional character and the main antagonist of Square role-playing video game Final Fantasy VII. A former soldier of the megacorporation Shinra and the coworker of Zack Fair and superior of Cloud Strife, he possesses superhuman physiology as a result of an experiment in which Shinra injected him with cells from the extraterrestrial lifeform Jenova when he was still a fetus. From Wikipedia
