I Became a Genius Swordsman in the Pretty Girl Game - Chapter 206

This is a prequel to the anime movie To Aru Majutsu no Kinsho Mokuroku – Endymion no Kiseki.

Just before the completion of the Academy City space elevator “Endymion”, the main characters Kamijou Touma and Index encounter a level 0 girl named Arisa. The Magicians are after Arisa, and they attack Academy City. A female leader named Shattoaura leads a unit from Academy City against the attack. Kamijou and Index learn from Stiyl that Arisa is key to a brewing war between the sides of Magic and Science. When science and magic cross paths, the story begins with Endymion as its stage!

There was a Senior Brother and a Junior Sister. One of them was transmigrated to this world and had cheats while the other was the reincarnation of a Great Emperor.

Qiao Zhenzhen spent a lifetime, only to later realise that she was the true heroine of a novel. According to the original plot, her life was supposed to be smooth sailing and blissful. But the envious transmigrated second female lead played her cards step by step, and took everything away from her!

After experiencing the divorce of her parents, and miserably failing the college entrance examination, she gets kidnapped along with her little follower of a male lead, Chi Shen. In the end, she came out as the only survivor.

Everyone believed that this was a blessing in disguise, not only was her life saved, but the pervert stalking her for the last three years was also gone! A freak like Chi Shen, who had a weird and eccentric personality, always stank of fish and grease, was better off dead. Everyone said that she ought to be grateful, but none of them knew he died protecting her.
Before he took his last breath, his dying words were-

“Don’t be afraid of me.”

That sentence, mixed with the smell of greasy fish and blood, flashed in her dreams every night for the next decade.

Reborn back into the senior year of her highschool, she walked to the youth in the corner, and in front of everyone’s eyes-

“Don’t hideaway in the dark if you don’t want me to be afraid of you.” The youth pursed his lips, his pale face steadily losing color.

Qiao Zhenzhen smiled: Be nice to me, and I shall allow you to stalk~

- Description from Novelupdates

Born into the powerful Moonviel Alpha bloodline, Celestia Elizabeth Moonviel was destined to inherit her family's legacy,until betrayal shattered everything. When her father, the ruthless Alpha of the Moonviel Pack, falls for a noble Vampire, it sparks a forbidden affair that destroys their family and ignites an all-out war between Werewolves and Vampires.Branded as a traitor's daughter, Celestia is forced to flee as her own brother, Lucien Moonviel, plots to eliminate her and claim the family empire for himself. With enemies lurking in the shadows, she finds an unlikely protector in Draven Nightshade, a dangerously charming Billionaire Vampire with his own hidden agenda.But Celestia soon discovers that the war is not just about power-it's about her. The child of her father's affair is prophesied to hold the key to supernatural dominance, and Celestia is the only one who can find him. Torn between vengeance and survival, between the fierce loyalty of her werewolf blood and the irresistible pull of a vampire's touch, Celestia must uncover the truth-before the past destroys her future.