The world has always sorted itself into categories.

Not by wealth, not by species, not even by strength—but by a second nature carried within every person. Four subgenders shape society's expectations, laws, and relationships: Alphas, Betas, Omegas, and the far rarer Enigmas.

Alphas are often associated with leadership, intensity, and powerful rut cycles that can sharpen instincts and desires alike. Omegas carry their own biological rhythms, experiencing heats that can leave emotions and senses heightened, their scent changing with the cycle. Betas stand between the extremes; the majority of the population, largely untouched by these instincts and often serving as the quiet backbone of society. Then there are Enigmas—uncommon, unpredictable, and surrounded by myth, their biology and place in the social order varying from one story to the next.

Pheromones linger in crowded streets and quiet homes. Suppressants exist, as do scent blockers, clinics, customs, and countless opinions about what each subgender should be. Some people embrace the hierarchy built around these instincts. Others reject it entirely. Some seek romance, family, or power. Others simply want to live.

This world offers no prophecy. No chosen one. No predetermined conflict waiting for a hero to resolve it.

There is only a setting—a vast stage filled with cities, villages, schools, workplaces, packs, families, and strangers.

Who you are is yours to decide.

Choose your subgender, your occupation, your relationships, your ambitions, or your lack thereof. Become a politician, a baker, a criminal, a student, a wandering traveler, or something else entirely.

The story begins when you take the first step.