How Does 'Turning My Junior Sister Into A Mary Sue In This Yuri World' End?

“Some—body will see us he---re,” I whispered through gasps, afraid any teacher will catch us making out in the school’s hallway. “They cannot put the Alpha King in detention,” he smirked, burrowing his face again in my neck and gently sucking my lips until I bit my tongue to not moan loudly. “One day, I will mark you mine Serena!” the moment he said my sister’s name while pressing his lips against mine, I felt betrayed. .. Serena Majestic is the next in line to be the Alpha of her pack. Born to lead and has lived a perfect life with everything she could have ever wanted. Loved by her family ✅ A perfect mate ✅ Respected by her pack ✅ Pretty looks ✅ Dream wedding ✅ She was loved by everyone, except for her twin sister, Arlene Majestic, who she always regarded as the villain of her life. What happens when she suddenly wakes up in her twin sister’s body as the villain she once hated on the day of her wedding? Helpless, she is forced to watch her sister get married to her mate. Arlene challenges Serena to mend Arlene’s life. It was the only way for Serena to get her body back. Fighting every day to make her sister’s life better to get her life and body back was her only goal. But what happens when she falls in love with her sister’s mate in the process? What will Serena do when she discovers the shocking truth about her sister’s life? Will she succeed in getting her life back or forever struggle in her sister’s body? Read now to find out.

My adopted Omega sister, Maya Bardolph, is known to be innocent and kindhearted. Before the practical admission assessment, I specifically tell her not to interfere in any way. But she secretly puts a prohibited performance booster into my water bottle. I am reported for cheating on the spot. My results are canceled, and I am permanently blacklisted. When I break down and demand an explanation, she bursts into tears, looking pitiful and wronged. She weeps, "Sierra, I just wanted you to get first place... I didn't know things would turn out like this." My boyfriend, Dale Ashshade, immediately pulls her into his arms and blames me instead. He scolds, "She is only trying to help. Why are you being so harsh to her?" My parents chastise me frostily as well. "Isn't it just one practical assessment? She's an Omega. She doesn't understand these things. Can't you be more patient with her?" To apologize, Maya smilingly brings me a cup of herbal tea later. "Sierra, I made this just for you. Promise you won't be mad at me anymore after you drink it, okay?" Without thinking much about it, I drink the tea. But what she uses to brew the tea is highly poisonous silver oleander. I die from the poisoning. Outside the emergency room, Maya cries hysterically, "I'm sorry! I didn't know silver oleander is poisonous... I just wanted to apologize to Sierra..." When questioned by the Enforcers, Dale calmly gives false testimony. "After Sierra was caught cheating, she became mentally unstable. She couldn't accept how things turned out and took silver oleander to kill herself..." When I open my eyes again, I return to the day before the assessment.

On the day two couples come to the orphanage to adopt, a row of comments suddenly appears before my eyes. "Hurry, Nancy! Make the first move! The couple who look like bumpkins is just pretending to be poor! The ones dressed nicely are actually poor." "Call them Mom and Dad quickly! Do not let Nadia steal them away!" In the next second, Nancy, who is standing beside me, suddenly rushes toward the country bumpkin couple. Nancy says, "I'll gladly go to the countryside with you. I will leave the rich girl life to my sister." Everyone starts cheering in the comments. "This is great! Nancy, our dear female lead, won't suffer anymore!" "Nadia, the evil villainess, will rot and stink for the rest of her life. Nancy will crush her under her foot. She will never have the chance or the right to meet the male lead!" I am stunned. So Nancy can see the comments too. She is the female lead, while I am the villainess. But what she does not know is that I am reborn. In my previous life, the real wealthy family takes me away. I look at Nancy and smile coldly. "Just wait, dear sister. Your 'good fortune' is yet to come."

One moment I'm chasing after a rabbit and the next, I'm falling down a rabbit hole! What the heck?! This ain't Alice in Wonderland?! Though as I opened my eyes, I soon found out that I was no longer in my original body and that somehow I transmigrated into the light novel, A Fairytale Romance. And that isn't all, the character whose body I transmigrated into... is none other than the canon-fodder, stuck-up, arrogant, and selfish ojou-sama who was nothing more than a comic relief character, Maria Rosendrey. Life truly sucks...

My brother Mitchell sided with his dream girl when she accused me of bullying her. Despite being the only family member I had left, he exploded in anger and sent me away to a boarding school for so-called reformation to learn how to become a meek and obedient little sister. In time, I became exactly what he wanted—a docile sibling who never fought back, never argued. But everything changed the day he saw my medical report. He lost his mind. "Nora, I'm begging you—forgive me and let me be your brother again!"

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.