This alpha is not a womanizer
In the post-interstellar era, Omega is in power, alphas are extinct, and only artificially produced sterile alphas are available for omegas to enjoy. Perhaps it broke the laws of nature, and a kind of depression and despair spread throughout the universe, especially in Omega.
She was just an ordinary beta, living an ordinary life, going to an ordinary university, having ordinary parents who both died, and having an ordinary guardian sister. However, on the day she came of age, she was knocked down by a beautiful young lady...
Princess of the Federation, Saint of the Temple, Queen of the Empire, the most beautiful woman in the universe, etc.: Please let me give you a child!
Protagonist: (Tightening his waistcoat) Sorry, I am not a womanizer due to a genetic defect.
Purpose: Only those with strong willpower can control their own destiny