Lezonia, also known as Lesonia, is a planet in Star Ocean: Fantastic Space Odyssey and its remake, Star Ocean: First Departure. It is located in the Gamma Sector. It is inhabited by the Lezonians, who were behind the biological weapon used on Roak and the abduction of 200 thousand Roakians in 346 S.D., during the war with the Terran Alliance. This planet had huge influence in the Milky Way in the 4th century S.D.