Part 1Returning to the otherworldly realm on the day of the lord's bride selection.

I found myself and my sister Nora inside a fantasy novel, tasked with selecting our husbands. In her previous life, Nora, having read ahead, chose the novel's protagonist, the Tentacle Monster. I was left with the supporting character, the Vampire. Unexpectedly, the Tentacle Monster fell in battle due to a lack of Mental Strength, while the Vampire I picked grew powerful and became the new lord.

When I woke up again, Nora had already chosen the dashing Vampire. "I'll be the Vampire Lord's wife in your place," she declared. I tried to hide my smile. If she wanted to be a Blood Pack and endure the depraved Vampire's torment, I wouldn't stop her.

When Nora took the Spirit Clan's blood-purifying technique, I realized she had reincarnated as well. Previously, she unhesitatingly chose to marry into the Tentacle Clan, knowing they'd eventually triumph. However, my blood turned out to be crucial for enhancing Declan's powers, allowing him to counter the silver light waves created by the Tentacle Monster Clan and even increase his attack speed.

After we won the war, Declan openly showed affection for me, making others envious. But as victory was within reach, jealousy turned Nora's eyes red, and she stabbed me with a silver knife. I watched as blood gushed from my chest, and my vision faded. Later, she turned me into a "Human Swine," trapping my soul for a century, often mocking me, "I am the Spirit Clan Heiress. How dare you compete with me?"

Upon waking again, Nora looked down at me after stealing the technique to enhance blood purity. "Sister, only I can be the Vampire Lord's wife." Seeing her smug face, I knew she hadn't realized I had reincarnated too. I nodded obediently, letting her decide everything.

Our father, the Clan Leader, spoke with a heavy heart, "Fiona, as the Heiress, you should marry into the Tentacle Monster Clan. You can't endure the hardships of marrying a Vampire." I laughed coldly inside. Father always treated us differently. If Nora couldn't endure the hardship, why should I?

The Tentacle Monster Clan had suppressed the Vampires until they were confined to darkness. Eventually, both sides made peace. Our Spirit Clan had techniques to enhance both clans. To survive in this chaotic world, the Clan Leader's daughter had to be sent for a Political Marriage. We all knew that after the marriage, a new war would begin.

On the surface, we remained neutral, but Father leaned towards a Tentacle Monster victory. This Political Marriage was bound to be unfair. Nora quickly reassured Father, "Don't worry, Father. As the Spirit Clan Heiress, I'll be fine." Father resentfully scolded me, "Thank your sister for her concession. Otherwise, how could a concubine's daughter like you receive such protection?"

I could no longer hold back and coldly asked, "I didn't ask for it. Why should I thank her?" Fiona yelled at me, pulling out a whip and lashing it at me, "Who do you think you are, daring to speak to Father like that? Kneel and apologize immediately!" My back burned, and warm liquid oozed out. Growing up, she would beat or scold me at the slightest conflict, and my father always turned a blind eye.

Father pointed at me, cursing, "You're just like your lowborn mother! If you weren't useful for the marriage, I'd have killed you long ago!" I bit my lip and stayed silent. Nora, you probably don't know how much I suffered in my past life. Since you're willing to endure hardship, I'll let you.

Nora only saw Declan's public kindness towards me, not realizing he used me to gain the Spirit Clan's trust. He forced me to cultivate the Spirit Clan's blood technique, making me produce blood endlessly. He even made my blood into Blood Packs for his generals, successfully destroying many Tentacle Monster bases.