Vendetta, or Angela as a companion, is a monster in the second part of Monster Girl Quest: Paradox.
Monsterpedia Entry
Attacks
Strategy
Evaluation
"You ended up as the prey of a vampire, again. Do you even understand how hard it is for me to still have faith in you? Vendetta is a magical type of vampire. Aside from the fact that she uses Fire Ice and Lightning spells she can also cause status ailments and Instant Death. Because she is a vampire she has many weaknesses. You can use Fire or inflict status ailments on her. Now go, oh Brave Luka. I'd tell you I believe in you...but now I'm not so sure anymore."