It's Pokedex entry can be something about attaching itself to young girls and feeding on their blood.
In Disgaea D2, according to my fiancee, there's a weapon called the Contract Staff with a description of "No, I won't steal your soul or anything. Promise~ <3"
My only experience with that franchise is with the first Prinny game, which was hilarious. The main games are SRPGs right? How are they?
Really damn good, actually. The general consensus seems to be that Disgaea 4 is the best entry, while 2 is by far the worst. While Disgaea D2 removed a lot of the things wrong/unnecessary with 4, its story was a good deal weaker.
If you have a Vita, get the Vita port of D3, and the Vita port of D4 when it comes out, likely in the summer at some point.
Official Crimson Spinda of the Pokemon X board 3DS FC: 4339-2745-7659, Pokemon X IGN: Nanako