The Vampire Lord Wants My Blood

From the back cover

"I am dying for a taste. Just one taste," He whispered under his breath, like he was admitting to a shameful, forbidden desire, and without warning, he lunged for my wrist.

...

Sarah is a high school student who has had a really hard life. Between being bullied at school and problems at home, she has had enough. She decides to commit suicide only to wake up in a different world and a different body. In this new world, vampires and humans coexist in a single society. Vampires protect the land and humans provide labour and blood.

With Sarah's rotten luck, her second chance at living is as the hidden and disliked third daughter of the Hale family whose name is Lena. When Lena has to go in place of one of her sisters to the annual ball arranged by Alistair Valerius, the Vampire Lord of the Nocturne Territory, their paths cross.

The Vampire Lord wants her blood and he is determined to have it.

Lena has to move in with him and unexpectedly, sparks fly. A bond forms between them. Lena must learn to survive in this new and dangerous world as evil plots are made and rebellion rises against the Vampire Lord's reign.