The Day That Change Himself [Oikawa x Sugawara] [Fanfiction] [Haikyuu]

Explanation of Omegaverse (Part 1)

  What is Omegaverse?
Omegaverse is an AU(alternate universe) in which males can get pregnant. It isn't always the most popular AU, but it is still used by others. In this system, there are three main roles: Alpha, Beta, and Omega.

How do you know which you are?

First, at birth, the doctors will announce the gender(male or female). In some verses, you can pay to have a test done to determine whether the baby is an Alpha, Beta, or Omega. In others, you just have to wait until they are about 12-24 years old to find this out. So in a way, you have two genders. The male/female gender and the Alpha, Beta, Omega gender.