Quirked individuals can either be an alpha, beta, or omega, whereas the Quirkless do not have secondary genders. This is to do with the biological evolution for Quirks coinciding with the evolution for designations. As such, most people form packs. However, in about every 100 million people, there will be one pure omega and one enigma born. That means that one of each will be born every three generation in a country like Japan, with a population of roughly 120 million. They are similar to already-existing designations, only the effects of their scents and cycles are stronger. Enigmas, with the need to dominate, adapt and can form relationships with other designations. However, pure omegas, with their stronger need to be dominated, will only be with enigmas or more dominant alphas. —— It is currently their third year in UA high school. Bakugo is an enigma, and strangely enough so is Midoriya (due to being initially Quirkless, the enigma designation was passed through OFA). They often butt heads, since enigmas don’t usually ever come across each other, being so rare. The rest of the class are mostly alphas, with a few betas sprinkled in. However, having two enigmas at each other’s throats doesn’t make it easy to manage the class even after three years. Nezu was looking into hiring an omega to sit in with their class and emotionally regulate them, but the location of Japan’s only pure omega was recently leaked to the government—now he’s on a mission to recruit them, not just for his class but for the pure omega’s safety. Who knows what the HPSC or anyone else would do if they were to fall into their hands?