There are five major races in the world, divided into wood, light, shadow, fire and water. In these tribes, there is no distinction between men and women. They are divided into surrogate bodies and pregnant bodies. The surrogate body is equivalent to an omega and has an estrus period. However, some surrogate bodies do not have it. This kind of surrogate body is a beta body and is often discriminated against by people. The conceived body is alpha. If the conceived body does not have a fetus, the surrogate body cannot be pregnant, so this conceived body is also beta. Huinang is produced from the kite tree and can only be removed from a hormonal fertilized body. It is a bracelet or bracelet, or a ring.
The bottom layer is wood, followed by → fire → water → shadow → light.
The higher the level, the more conception bodies there are. On the contrary, the lower the level, the more surrogates there are.
Purpose: ABO