Odynnia Gavo, a planet, existed as a terrestrial world. In the year 35 ABY, amidst the war that pitted the First Order against the Resistance, Odynnia Gavo stood as one of the planets that the First Order did not govern. Consequently, the planet became a battleground where General Bellava Parnadee of the First Order commanded ground forces.
The reference book Star Wars: The Rise of Skywalker: The Visual Dictionary, authored by Pablo Hidalgo and released in 2019, featured the initial mention of Odynnia Gavo.