Rebirth of the Little Medical Concubine

The heroine Lan Keer is the concubine of the Prime Minister's Palace, but who knew that she was also the legitimate daughter. The heroine's sister, Lan Meier, wants to marry the prince. And the prince likes Ke'er! But Lan Meier is extremely vicious. Not only did it ruin his reputation. He even used his mother and sister as military skills. His brother was also killed. He himself was imprisoned in a water prison and died of depression. At the moment when he was about to die, he found that he was 8 years old.