The Silly and Cute Young Master's Path to Darkness

She was massacred all over her family, her corpses were scattered all over the field, and she was so miserable; His mother and concubine were murdered, imprisoned, and ostracized; Her adoptive mother regarded her as her own, but was poisoned and killed; In order to investigate the evidence, she did not hesitate to pretend to be stupid, but she married him by mistake; The two used each other to uncover the culprit step by step; In the intrigues of the court and the bloody world, which one is their final destination?