Oinari (お稲荷, 뇌신) is the second planet in the Seiryu System. A predominantly agricultural world, Oinari is often known as the 'foodbasket' due to the amount of food it exports to other planets, predominantly Benzaiten. The planet experiences perfect conditions for growing crops and livestock, with enough sunlight and enough rain almost all over the planet. Rice, Tea, Sake and Meats are the planet's main exports. Oinari shares similarities with Raijin, in that it is covered with a significant number of ancient alien monoliths. Oinari is named after the Japanese Kami of Rice, Tea, Sake and Agriculture.
Oinari is the largest planet in the Known Universe, with a diameter of over 40,567 km, however is among the least populated with a total population of 3 billion. Despite the low population, the planet is highly productive, as a lot of its agricultural systems are automated and mechanised.