Okami Wa Nemuranai - Chapter 5.7

Asking help from the enemy was the last thing Samantha ever planned on doing, but who knew she would find her fate irrevocably sealed in the hands of a notorious Vampire Lord?In a world where Humans and Vampires have chosen to co-exist, the sacred orb of GreenHollow in the Northern Empire goes missing on a rainy night, right after the death of their ruler who was murdered in cold blood.It brought upon them an endless drought that can only be reversed when the sacred orb is found, and returned to its rightful place in the Empire.Ivan Chevalier, the heir and most feared son of the murdered Vampire King, has only two motives in life - to find his Father's perpetrator and behead him, his second motive is hunting down the sacred orb and restoring GreenHollow to what it used to be during his Father's reign.But when both motives lead him to the hands of his enemy's daughter, he has to choose between getting rid of her, or using her to his advantage by turning her into his blood slave.Samantha Dufort, a simple girl from EmptyHollow, is on the run with her younger brother after witnessing her Father being brutally murdered by a Vampire Lord.On the way, she gets abducted by slave traders.Forcefully separated from her younger brother, Samantha finds herself in a brothel, where she is trained to become a courtesan till she comes of age to be sold out.Her encounter with a mysterious man in white whom she referred to as her 'angel of death' saves her from a misery that only led Samantha into the cage of a Vampire Lords den.Tricked into becoming his puppet, Samantha tries to find different opportunities to escape the Vampire's den, and the Vampire Lord in person. But will she succeed when no one has ever left the Palace walls?Well, she was going to be the first to escape from these walls and find her missing brother.Twisted and trapped in the webs of Vampire politics interrelating with humans, Samantha discovers the main reason for her existence, a reason that could lead to changing the course of Empty Hollow. What happens when the Vampire Lord isn't the only darkness she has to run away from?

It begins on the mountain.

With the glint of a knife, a flash of steel in the hands of a sworn brother. A betrayal.

Stabbed and pushed down the mountain, Zi Chen lied within the red-stained snow, left to die.

This is where it begins; he is given life by lightning,
baptized by thunder.

Those who had once betrayed him should all suffer in his cruel revenge.

- Description from Novelupdates

Ye Qingli is the daughter of an Imperial Businessman’s first wife, wealthy and overbearing. But because of her mother’s early funeral, she suffered utter oppression and abuse under the hands of her stepmother. On the eve of her marriage, she died tragically in the hands of her stepsister and her own fiance!

Zhang Ruo Chen was the sole male heir of one of the nine emperors of the Kunlun Field. Ruo Chen’s father was known to all as the “Enlightened Emperor”, however Ruo Chen didn’t just leech off his status as emperor’s son. He proved himself to be a dragon amongst men, possessing a heaven defying body, and managing to cultivate to Greater Perfection within the Yellow Horizon Realm, at just the young age of 16.

But even though he stood at the summit of the younger generation and had a boundless future, he sadly died at the treacherous hands of his own fiancee at a young age.

Reincarnated 800 years later in the body of a young boy who shares his name, he found out his former fiancee already unified Kunlun’s Field and built the First Central Empire, and was now known as Empress Chi Yao… Empress Chi Yao—Her Majesty governed the mortal world and enjoyed prestige in all directions as well as an eternal life.

Zhang Ruochen stood outside of the Imperial Ancestral Temple, looking at the statue of Empress Chi Yao, and the flames of hatred burned in his heart. “After I practice for 13 years, I shall send the empress to her doom!”

- Description from Novelupdates