The Medical Concubine Cannot Escape, but the Prince Favors Her

She is the successor of the medical profession who was exterminated, and he is the prince of the former dynasty who is saddled with a blood feud. She saved his life, and he promised her a lifetime. Until Yu Perry's secret is revealed - the enemy of her family is actually the person he wants to be loyal to. "Murong Yuan, if you and I were destined to be enemies, would you kill me?" He pinched her waist and said in a hoarse voice: "I will kill you first, and then I will sacrifice you."