I Married His Vampire Rival

I was born into the succubus race. On my eighteenth birthday, I had to choose a partner, absorb their desire, and form a bond. If I failed before midnight, I would be forever stuck as a low-level succubus, a plaything anyone could command and control. I thought my childhood friend Andreas would keep his promise and become my partner. But in front of the entire school, he took Dahlia's hand, coldly rejected me, and even revealed my secret as a succubus, letting everyone jeer and humiliate me. Later, I learned that Dahlia was also a succubus; she used forbidden magic to manipulate Andreas, all to steal everything I originally possessed. She set traps with potions and online forums, intending to destroy me during my uncontrolled heat. I escaped to the rooftop and met Keenan, Andreas's most hated nemesis. Everyone thought he was just a cold human graduate student, but only I saw the vampire fangs hidden beneath his gentle smile. I chose him to survive, but unexpectedly formed a lifelong, unbreakable bond with him. Keenan cleared the rumors for me, exposed Dahlia's true nature, and placed his heart in my hands as a vow of never betraying her. Andreas, however, only realized after regaining his senses that he had pushed away the girl he had truly loved for ten years. He regretted it, apologized, and wanted to win me back, but I already had a new partner. Dahlia was taken away by the succubus judges, forever losing her freedom.