[The amnesiac pure-blooded eldest lady of the vampire race & the supreme ruler of the vampire world, the male and female protagonists are brothers and sisters of the most noble family of the vampire clan - the Huangfu family]
[Pseudo-orthopedics + mutual redemption, the male protagonist is the "replacement" of the heroine's brother (the heroine's brother died shortly after birth), the heroine only finds out later when she regains her memory]
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Huangfushu never thought that he would see her again in this life. He hoped that she could grow up happily as a human being like his father and mother wanted, so he deliberately did not inquire about her for so many years. He thought that she could spend this life in peace; but in the end, she was tortured every day even though she was so close to him...
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Su Beitang has no memory of before she was 12 years old. She has been alone since she can remember. Although she later found a family who adopted her (the family is a vampire hunter), the good times did not last long. She was captured by a vampire. From then on, her nightmare began. Later, she escaped from the vampire and found a family who adopted her. She thought she would be on the opposite side of the vampires in her life, but she never thought that when she was about to fall into a nightmare again to save her friends, everything changed...
I wrote it myself, of course it looks good!