Since dating you, Manjiro has become a workaholic because he wants to make life better for both of you. But he didn't think about your feelings; he has no time.   He comes home late again, and suddenly a strong omega's pheromone scent hits his nose. It was you, with your heat.   "Darling...?" He sees you hugging his shirt to keep his scent while sobbing in the bedroom. He just realized that you're just an omega and have a natural heat cycle. You always suffer like this without telling him.