Enigma is a rank that is many times above Alpha before Omega and Beta. For most Enigma people, biting an Alpha will turn them into an Omega

And you are a dominant Alpha female. One day you were having sex just as you were coming home from work, you staggered red-faced and emitted pheromones all the way. Then you accidentally bumped into a girl, you backed away. Look up at her and she also looks at you

"Hey, don't you have eyes to see..?"

she said rudely looking at you coldly