The Invisible One in the Marquis's Household

Only after transmigrating did Lin Miao learn that she had become the concubine of the Marquis of Xuanwu, a cold-faced killer renowned for his great service to the Great Zhou. Rumor had it that the Marquis of Xuanwu and his wife had been childhood sweethearts who were perfectly in tune with each other. But his wife had been weakened by giving birth, so, under the pressure of the old madam, one concubine after another was brought into the household. Lin Miao was the third. On the very day she entered the manor, the Marquis went off to war, and the war lasted two years... She had no duties to fulfill and could eat and drink for free. Lin Miao thought this little life of hers seemed pretty good. Then one day, the Marquis returned victorious... and Lin Miao's good days were over. Then another day, the Marchioness wanted to divorce the Marquis... and Lin Miao was forced to become the new wife. = = Content warning: The male lead has concubines. Theme: A good life depends on your own two hands.