here's what i found:
the seven ghosts are:
Frau: Zehel - ?? "the cutting spirit" (Frau; the Ghost who severs bonds)
Castor: Fest - ?? "the tying spirit" (Castor; the Ghost who ties soul to soul)
Labrador: Profe - ?? "the speaking spirit" (Labrador; the Ghost who prophesies)
???: Randcarte - ?? "the extinguishing spirit"
Lance: Rilect - ?? "the bequeathing spirit" (Lance; can see one's past)
???: Ea - ?? "the awaking spirit"
Fia Kruez: Vertrag - ?? "the pledging spirit" (Fia Kreuz; manipulate the souls)