The Oya system is a planetary system in the United Empire of Earth (UEE) that consists of a G-type main sequence star, three terrestrial planets, and one planetoid.
In MXY III.866 (SEY 2566), it was discovered by test pilots for House Ng.at'ak during the preliminary flight of a cargo ship prototype. The Emperor ordered the construction of a colony on the third planet from the star, which had a naturally-occurring nitrogen-oxygen atmosphere and favorable climate conditions. However, after Lieutenant Eli Price of the UEE Navy located the Oya-Castra jump point in SEY 2587 (MXY III.882), the Xi'an government recalled the colonists and left their unfinished settlement abandoned. The UEE claimed the system and added it to the Perry Line, naming it Oya after an ancient Human deity of wind, storms, and death.