Disgaea 4: A Promise Unforgotten takes a slightly different approach. You play as Valvatorez, a vampire who has taken an oath to never again drink blood. Instead, he gets by on the rich nutrients provided by sardines. They're an okay substitute, but without actual blood, Valvatorez's powers have weakened. Once viewed as a tyrant, Valvatorez has been demoted to Hades where he trains newly created Prinnies. For any other demon, this would be a fate worse than actually turning into a Prinny, but Valvatorez actually likes his position and the Prinnies serving under him.