Is 'My Sister Is A Warlord' Based On A Novel?

In order to become the sole heiress of the Xander family, my younger sister schemed and manipulated, pushing me into depression and driving me to attempt suicide.Upon my rebirth, I vowed to seek revenge and would not tolerate injustice.It wasn't until one day when I met a girl who looked exactly like me that I discovered the truth: my sister was a fake heiress, and she harbored many hidden secrets...

My sister and I were both enslaved after the Great War and the defeat of humankind. But before long, my sister's striptease performance earned the Alpha lycan's favor, and they soon left, holding hands. On the other hand, I was taken away by a masked man unceremoniously after he left some money on the counter. However, no one expected the Alpha lycan to chew through my sister's throat during the full moon, while the masked man treasured me, pampering me with endless wealth and prestige. My sister turned into a vengeful spirit then and cursed me to death. When I opened my eyes again, we had both reincarnated to that fateful day. This time, my sister threw herself straight into the masked man's arms, sniffling as she begged, "Please love me?" Standing nearby, I laughed. After all, it was wonderful that I didn't have to be a vampire's walking blood pack in this life.

In my previous life, on the day my sister and I attended the Witch Covenant's mating ceremony, I saved a fallen vampire prince. To repay my debt, the prince, upon returning to his clan, immediately declared that I would be his future bride. A year later, I gave birth to a pureblood heir—the only successor of the entire vampire lineage. The prince was overjoyed. On the day of his coronation as King, he sealed a blood bond with me, declaring me his eternal companion and queen. From that moment, I was revered by all races. My sister, meanwhile, chose a powerful werewolf Alpha, only to fade into obscurity as one among his many lovers. Her jealousy of me spiraled into madness. During a full-moon ritual held by the witches, she pushed me into an abyss, leaving me to die from the fall. When I opened my eyes again, I saw her running toward the direction of the vampire prince's misfortune on the very day of the mating ceremony. I knew then: she, too, had been reborn. But what she didn't realize was this—becoming the prince's bride was easy. Winning his heart, bearing his child, now that was as impossible as climbing to the heavens.

I failed my college entrance examination. My father decided to sell me to the village chief’s hot-tempered, crippled son. My younger twin sister helped me escape in the middle of the night. It was only later that I discovered my younger sister was the one who had failed the examination. She used my identity to attend college and hooked up with a rich heir. At her engagement banquet, they revealed the truth that she had taken my identity. As a result, the event fell apart. Out of rage, my sister pushed me down the stairs. I grabbed her and pulled her down with me. When I opened my eyes again, I returned to the day the examination results came out.

I return to the country after attending an international anesthesia academic conference. That's when I see the news of my boyfriend and twin sister getting married. I'm anxious to verify its authenticity, but my sister drugs me and induces me. "A substitute's child will only be an unwelcome bastard even if it's born. I'm just helping it move on to a better life." Then, she slices me open with a scalpel. She gouges my womb out, causing me to die from significant blood loss. Meanwhile, my boyfriend believes her lies. He's sure he's not the father of my child. He ignores my messages begging him to save me. Instead, he spreads the word about me eloping with someone else. He even wipes all traces of me from his life. "I will never see her again, forever and ever." Five years later, surveillance footage of my sister cruelly murdering me surfaces.

My mother brings home a woman named Julia Hayden from the back of the hill and makes her my sister-in-law. Our family is poor. As Julia is beautiful, my mother forces her to work as a prostitute in secret to earn money for the family. But a villager, Lara Clay, says Julia is not human. When my brother sleeps with her, I peek inside through a crack in the door. In the dim yellow light, I see the shadow of a huge snake tightly coiling itself around my brother's body on the wall...