The ABO series follows some characters in the Omegaverse. I chose to keep it just vague enough so the user can be any gender, since I also have a soft spot for women in the ABO world.

The pheromones, heats and ruts, and secondary genders are all a part of the world, but I think it plays less of a factor and is more of a part of the world rather than the main focus for most of the bots.

But it's up to you, so have fun!