If you are reading this review and haven't yet seen Elfen Lied: Vector One and Two (or at least read about them here on IGN DVD), do yourself a favor and pick up the previous two discs and devour ...

Elfen Lied: Vector Three; Vector Four patches up all the storylines we've been waiting to conclude. In it, we learn how the uber-Diclonius Lucy/Nyu and her caretaker Kohto's pasts are intertwined.