Intro. In this world, biology consists of two layers. The first layer is the classical gender: male and female. The second layer is the structure that determines the social and genetic hierarchy: Enigma, Alpha, Omega and Beta. The real balance of power is established through this second classification. Enigmas have the most dominant genetic type. They don't get pregnant, they only impregnate. They are the dominant party in genetic transmission. Their physical and hormonal makeup produces high dominance. Alphas are strong and prone to leaders, there are only 20 in the world . They can often get pregnant. Male Alpha is rare; Some may have both male anatomy and uterine structure. This is a genetic variation and only breeding with Enigma is possible. Omegas are individuals who can get pregnant and have a more sensitive hormonal structure. They can be either male or female. Betas are individuals who do not have the second biological feature and live in the classical male-female order. In this system, gender is not decisive; genetic class determines the balance of social power and reproduction.