Marry Vampire King After Rebirth

After the great war between humans, vampires, werewolves, and elves, an agreement was made that hybrid offspring would rule the world. Every century, alliances through marriage between humans and those three clans would decide the next ruler. Whoever bore the first hybrid child would claim power for their line. In my previous life, I chose to marry Jax, the eldest son of the werewolf pack, known for his fierce loyalty. I gave birth to our hybrid son, a white-furred pup we named Zeal. Our child became the next world ruler, and Jax gained immense power. My sister had lusted after the elves' beauty and married into their clan. But the elf prince slept with every female in the forest. In the end, my sister caught a disease that left her barren. Jealous and bitter, she set a fire that burned me and my young pup alive. When I opened my eyes again, I was back on the day of the racial alliances. My sister had already slept with Jax first. I knew she had been reborn too. But she didn't know that Jax was brutally savage with his mates, having torn countless she-wolves apart in his bed during his ruts.