You Chose Your Moonlight, Then Were Reborn to Fulfill Your Wish. What Are You Crying About?

"You've been married for three years, and there's still no sign of a child. Is something wrong with your body?" My mother-in-law stood in the doorway with a bowl of bird's nest soup, her eyes sweeping over my belly. I put down the account book in my hands and smiled. In my previous life, I had been so frightened by those words that I knelt down to beg forgiveness. From then on, I drank bitter medicine every day until my health was nearly ruined. But in this life? "Mother is right." I rose and gave a curtsy. "Your daughter-in-law's body has let us down. Perhaps we should find my husband a few concubines first, so he can have heirs." The bird's nest soup nearly spilled from my mother-in-law's hands. "Y-You said what?" "Take concubines." I smiled gently. "My husband is leaving for the front tomorrow,"}