(Original name 'Revenge Series: Perfect Twins') [Vampire Benefit] When they were 7 years old, they saw their mother being killed with their own eyes. The murderer was their father, and they were not doing anything, because they knew that their father had an affair. Is that man worthy of calling him father? Oh, he is nothing. You will pay a heavy price for what you are doing now! They said silently in their hearts, and then left the so-called home. Ten years later, they transformed. One is as evil as Demn, fierce as Angel, and the other is as pure and cute as Angel. They return strongly! There is actually a story behind them. They are not just humans... They are...