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.

It was then discovered that Lezonia was controlled and manipulated in this war by a powerful unknown third party - planet Fargett, who granted them powerful technology, such as the biological weapon used on Roak.

Dictionary Entry

A planet located in the Gamma Sector. Gravitational anomalies abound in the region surrounding Lesonia. It used to boast a huge sphere of influence thanks to the warp tunnels that used these anomalies for faster-than-light travel. Unfortunately, this method of travel is one-way only, and only leads to specific destinations, so when warp technology was developed, the power of this planet dwindled rapidly. (As of the present date of 772 SD, only a few useful two-way routes have been discovered.)