Became King After Being Bitten

Zachary Waltz found himself reverting his 18-year-old self following an accident, but soon realized that he was reborn to a different world ruled by vampires, and humans were their slaves. Although Zachary just wanted a quiet life while making amends for past mistakes, he was unexpectedly chosen for a pure blood vampire's trial for kindred. When life and death hang on the balance, a mysterious power kicks into life within his body. Hence, the king of vampires and humans alike have come!