Trading Places: My Fate With the Beast King

"After the human race loses the war, the beastfolk rule over the human lands.As crown princess, my sister Amber Whitaker is born beautiful and is handed over to the Beast King, Theron Olson, as his concubine.Compared to her, I'm plain, so they send me to the breeding quarters, where beastmen fight over me and use me like a breeding machine.However, Amber doesn't fare well either. She's too gentle for palace schemes. Before long, the other women frame her, and she dies.As for me, pregnancy after pregnancy wears my body down until it's too weak to go on, and I die filled with hatred.Then, everything blurs. When Amber and I open our eyes, we stare at each other in shock and realize we're back on the very day the human race falls.This time, I hold her hand tightly and say firmly, "Let me serve the Beast King instead!"On the night, Theron takes me to his bed. "You look so slim, yet you're surprisingly full. Are you afraid?"With that, he strips away my clothes and casts off his own.One glance makes my breath hitch. I've seen beastmen's packages before, but I never expected Theron to have two!"