Synopsis：On her eighteenth birthday, Ella’s contract partner kneels before the entire crowd—only to kiss her sister’s fingertips instead. In front of everyone, he snaps their ring, breaks the blood pact, and sneers that she’s a worthless nobody. The backlash of the broken contract makes him cough blood on the spot. But the instant their bond shatters, an ancient power that has slept inside Ella for eighteen years finally stirs… and the real her begins to awaken.