Synopsis：Aliyah, a human girl working as a food courier to support her family’s ranch, accidentally wanders into the ancient castle of Lucius, a 200‑year‑old pureblood vampire lord. Mistaken by a witch as the fated soulmate who can bear a pureblood heir, she is forced into a contractual marriage with him. On their wedding night, the witch sends a horrifying message: her prophecy was wrong, Aliyah can never give Lucius a pureblood child—and if this secret is exposed, Aliyah will be killed on the spot. Desperate to escape, Aliyah is tightly confined by the possessive, obsessive Lucius, until his half‑brother Alan appears, claiming to be Aliyah’s true soulmate and offering her freedom, though he initially approaches her only to take revenge on the pureblood clan. After fleeing to her grandparents’ ranch in the countryside, Aliyah enjoys a brief period of peace, but is soon threatened by Serena, a pureblood vampire madly in love with Lucius, and by Aliyah’s greedy, ruthless biological father. Through a series of life‑and‑death trials, Lucius finally lets go of his obsession with lineage and recognizes his genuine love for Aliyah, while Alan abandons his vendetta and sets off to roam the world. Freed from the shackles of false blood ties, Lucius and Aliyah clear up all misunderstandings, choose to stay together for true love, and in a twist of fate, welcome the birth of their own pureblood baby.