She was once the strongest vampire hunter, but an accident cost her life. Yet, for various reasons, she arrived at the legendary Palace of Cold Sorrow. After signing a contract, she was reborn. The palace's master, Ye Shang, discovered that she was the reincarnation of someone else: a person the Palace of Cold Sorrow was willing to do anything to protect...
But she knew nothing of this. After being reborn, she became a five- or six-year-old child again and met Kurosu Kaien, the most powerful vampire hunter of the present day. She lived through the disaster that befell the pureblood Kuran family, and ten years later, entered Cross Academy, where humans and vampires lived together. There, she met many vampires, and...
Who is she, across her past and present lives, this life and the next? Is she the Blood Jewel from years ago, the present-day Ye Zhiluo, or the person from an even earlier era who founded the Palace of Cold Sorrow? Whoever she is, in whichever life, is she never allowed to love the one she loves and find happiness...?