Omega Secret
They even had to watch out for alphas when they were in heat, or they could be attacked.
Adom had always thought he would be an alpha or a beta, at least. He was tall and didn't look like the omegas around him. So, it was a shock when he got to know he was one. From that moment on, he decided he wouldn't give in to his second gender. He would just act like an alpha! Simple as that.
Ever since then, he took suppressants and scent neutralizers so no one would know.
It did have side effects, though: headaches, itchy skin, and terrible mood swings.