Erm, Raspberyl is a Disgaea 3 character (I believe she's in D4 as well in some form), but she certainly never appeared in the PS2 game Disgaea: Hour of Darkness, or even the ports. D3 was made well after any of those games/ports were created.
So that begs the question; Why the "Hour of Darkness" subtitle?
That said, interesting style. Extreme shading or something?