Koi Suru Mae ni, Amai Hatsujou. - Shachou to Unmei no Omega

"I don't want people to ask me this for the first time." Omega's Uiko, who is a proficient person, works as a beta at the company. It is to protect yourself from the approaching alphas drawn to the pheromone of the estrous cycle (heat) peculiar to OMEGAS. Uiko suddenly entered estrus, and the pheromones could not be suppressed, so she decided to rush to the matching salon "AΩ" dedicated to Alphas and Omegas! ?? A matching salon is a "sex salon" where Omegas can safely eliminate estrus. There, she meets a mysterious Alpha man with a mask. Even though I met him for the first time, it smelled sweet and I deeply melted, and my body was drawn to him ... I want this person deeper into my body! What is this feeling that you can't control even though it's your first time?