World Tree

The World Tree (界樹, Kaiju) is an enormous tree that grows on the homeworld of the Shinlings. The tree produces two types of fruits: an "ordinary fruit" (ふっぅの果, futsū no ka), which brings forth Shinling who have the potential to become Kaiō, and a "golden fruit" (金色の果, kiniro no ka), which produce Shinling capable of becoming Kaiōshin.