Haikyu! AU: Love Me

Kuro x Kageyama x Osamu Omegaverse Alternative Universe
(Don't hesitate to read this cause it'll be a happy end for these three. They'll end up together because I got freaking traumatize on Love Triangles)

After various of experiments, the society of the world changed. And the second gender was created. People was split into three different kind of second gender.

At the bottom of the pyramid are the Omegas. Only 10% of the population are tested as omegas. They release pheromones that attracts the alphas. They went ito inconvenience called Heat where they unconsciously release their pheromones as it risen their sexual drive. Their heat lasts at least 3-7 days. Most of omegas are physically weak and dependent.

At the middle of the pyramid, are the betas. The betas have the 70% of the world's population. They are just ordinary people, they don't smell Alpha or omega pheromones. But there are cases of Betas that release faint arousal pheromones with unique smell that only selected Alpha or Omega can smell.

Finally, an alpha who consumes 20% of the population. At the top of the pyramid, unlike omegas, they are strong physically. They are the mighty ones in the society. They can be affected by the Omega's pheromones and get a sexual drive. They have certain inconvenient called Rut, their sexual drive risen at a time like that. It lasts to 3-5 days.