Female O, Chased by High-Matching Alpha

[Pheromones + gloomy and cold-blooded S-class Alpha + calm and rigid Omega] Mingwu, a high-level Omega and an expert in the pheromone department, was mysteriously targeted for no apparent reason just because he treated a Beta and prepared a pheromone for her S-class Alpha "infertile husband". A pair of cold and ruthless black eyes stared at her, and slender fingers with black leather gloves strangled her throat. The oppressive pheromones made her curl up and helpless. Her eyes gradually became dark, and she felt the despair of dying... The head of the Yunze family, Yun Zemo, chose a highly matched partner in the alliance, and it turned out to be that bold omega, but it didn't matter who he married. Yun Zemo thought that marrying a well-matched Omega would be enough to give birth to the next S-level Alpha head of the Yunze family, but why was he scared when he saw that dull Omega lying in a pool of blood... Note: ABO setting, male A female O. Getting along after marriage.