Pampered by a Concubine

She was the daughter of a concubine, abandoned by her family. After ten years away from the capital, she returned only to become a pawn in a political marriage, taking her younger sister's place as the bride. Her father was cold, her grandmother disliked her, her birth mother was powerless, her stepmother schemed against her, and her wicked younger sister was cruel. If that's how they wanted to play it, they couldn't blame her for using ruthless methods. She didn't mind sending them all to their deaths. But the biggest headache of all was her husband, a nobleman whose life had been full of hardship. What happened to him being gentle and harmless? What happened to him doing whatever she said? Who could tell her who this mysterious man was, always appearing out of nowhere and kissing her in his arms without end?