@Sirkingsad so the omegaverse goes to three categories which is aphla, omega and beta. Aphlas are the ones who can mark omegas ( marking means that when they both have a heat cycle it can't be helped unless it's from thier partner). Aphlas can release like that thing I forgot what it's called but they release like this smell that omega can't bear. In this story aphla is black hair girl who has a pp and then red hair girl who is an omega. From time to time omega and Aphlas will have heat cycles which they need to have seggs to get over. Betas are just normal people like us for aren't affected by anything. They also can't be marked by alphas. Hope this helps :D