deMborg stands for his class un like a demortal [a human who is fused with an anchent demon spirit ]he is not a demon he is basicaly a cyborg and his machinery is fused with somenings of other kinds of demi [and no not demi lavadoXD]

he is related to yuki's past but i wont tell you yet and he is related to dante[have posted some picks of him before but they were kinda messed up ...]

well he has a canon behind him but you cant really tell from the picture praspective
he is from my manga soul ryuki