Ancient ABO background. Qianyuan women, accounting for 3%, are absolute leaders and have the highest status. Qianyuan men account for 12%, and their status is second only to Qianyuan women. Heyi women accounted for 15%, and their status was slightly lower than that of Qianyuan men. Only the above three genders have inheritance rights and all social rights. The status of Heyi men is far lower than the above three genders, accounting for 60%. Kunze accounts for 10%, of which Kunze women account for one ten thousandth.
There is no bisexuality, and the organs that differentiate between women and men are only used for excretion and urination. Sexual intercourse occurs only in the glands. All have pheromones.