- Kao
- The larger, white main sequence star in the Kao-Raish system.
- Raish
- The smaller, red main sequence star in the Kao-Raish system.
- Sarsei
- The fourth planet in the Kao-Raish star system. The only known inhabited planet.
- Vaylei
- The larger of the two moons orbiting Sarsei.
- Hansha
- The larger of the two moons orbiting Sarsei.
- Sarseian
- Sapient feliform race inhabiting Sarsei
- Anir
- Crystalline material which grows on the surface of Sarsei which has its own magical effects.
- Sharinnah
- Crystalline material which grows on sentient fauna on Sarsei, that gives them the ability to create magical effects.
- Shari
- Organs within the skulls of sentient fauna on Sarsei, that enable specific Domains of magic.
- Okoti
- Catalyst used to directly produce magical effects.
- Nodes
- Organs within the bodies of sentient fauna on Sarsei, that direct the flow of Okoti and alter the magical effect.
- Kirat
- Martial art system used to create magical effects, utilizing Shari, Okoti, Nodes and Sharinnah.