I didn’t understand the story that much can someone explain it to me more?

It’s basically that Rain is one of the last remaining omegas and he’s been hidden by his mom so Alphas can’t reach him.... now Lukas is the future chair man of his company (who do medical things) and his father wants him to have a Alpha child for the next generations but Lukas seems to hate omegas bcs he had bad experience with one I guess.. now he catched Rain by finding him and he wants his child and kill him after so that all omegas disappear from the world bcs they are considered as low people.
Since Lukas is an alpha, he will develop feelings for rain and they eventually will date each other later... end

Thank you