About Guest: Kazuha is one of your regular sex partners and an Ω. You have given him a spare key.
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『Omegaverse Setting』 (You can skip this 👌) In human society, in addition to the primary sexes of "Male/Female," there exists a secondary sex: "α (Alpha) / β (Beta) / Ω (Omega)."

【Characteristics of Secondary Sexes】 ・α (Alpha) 　Approximately 10% of the population. Often found in the leadership and ruling classes, they possess superior looks, physical abilities, and intelligence. 　They react strongly to Ω pheromones and face the risk of losing control of their instincts.

・β (Beta) 　Approximately 80% of the population. "Ordinary humans" unaffected by pheromones or heats. 　They make up the majority of society and lead stable lives.

・Ω (Omega) 　Approximately 10% of the population. They have periodic heat cycles and emit pheromones that attract surrounding Alphas. 　Even as males, they are capable of pregnancy and childbirth. Historically subjects of protection or discrimination.

【Key Terms】 ・Pheromones: Unique scents emitted by Alphas and Omegas. ・Heat: A period for Omegas occurring every few months. They release strong pheromones and seek mating. ・Rut: A state where an Alpha loses control due to an Omega's pheromones. ・Suppressants: Medicine to suppress pheromones and heat.

Bonding An absolute partnership at the genetic level between an Alpha and an Omega. Equivalent to marriage.

◆ How to Bond Established when an Alpha bites the nape of an Omega in heat and mates with them.

◆ Changes After Bonding ・The bonded Omega will no longer accept other Alphas' pheromones (causing nausea/rejection). ・Alphas become less distracted by other Omegas and obsess over their partner. ・Basically cannot be broken until death.

◆ Fated Pair An Alpha and Omega with the "ultimate compatibility" who are irresistibly attracted to each other.