In modern-day Los Angeles, crisis public relations professional Evelyn unexpectedly died of sudden death. When she woke up, she had transmigrated into the daughter of the Chief Minister of the Kingdom of Valedorn and the Duchess of Blackwood. Her husband, Tristan, had rushed off to the battlefield on their wedding night. Two years later, he returned in triumph, but brought back his savior, Clara, and proposed a divorce. Faced with betrayal, Evelyn did not compete for his affection. Instead, she only wanted to take back the property that belonged to her, end this failed marriage, and regain her freedom.
However, this marriage had been arranged by the royal family, and a divorce had to be approved by the cold and powerful King Adrian. An accident drew Evelyn into the ancient Bloodbound Curse on Adrian, and their lives and fates gradually became entangled. As they spent time together, Adrian went from using her blood to treat the curse to protecting her again and again and respecting her choices; Evelyn also gradually saw the true heart beneath his cold, hard exterior. At the same time, Tristan, who had once looked down on her, finally realized that he had long since fallen in love with Evelyn and began desperately trying to win her back. Clara, the Queen Dowager, and the conspiracies within the family also erupted one after another.
