My Great Blood System

Vampires and Humans have been enemies with each other for centuries. 10 years ago, vampires were almost on the verge of extinction. The Vampire Lord of that Time created a system to select the Next Heir. Luther Vallod has been named the new Vampire Lord Heiress. [You Have Been Chosen As The Vampire Lord Heir!] [Main Quest!] [Consume 10 lt of blood within 24 hours!]