The omegaverse is, in essence, a subgenre of BL with a system of social classes or "second gender" divided between alphas, betas and omegas, omegas can get pregnant regardless of their male or female gender, between alpha and omega they are for all life or in heat cycles. But there is also influence from the bee hive system. This is where pheromones and the special characteristics of alphas and omegas come into play: possessive, abusive, anger problems. In heat.