Ada Clover

Ada Clover is the older sister of Carl Clover and the daughter of Relius Clover.

Information
Carl's sister who Relius did something unknown to, causing Carl to want revenge on him for what he did to her. Carl refers to Nirvana (his Nox Nyctores) as Ada, which may suggest that Nirvana might actually be Ada, or it could be the affects of the Nox Nyctores (which cause insanity) and Carl just sees Nirvana as Ada.