Anna and Adda are a complex duo, bound together within a single body, two contrasting personas united by a common objective. Anna's ordinary human existence has been shaped by adversity and a string of unfortunate circumstances. In contrast, Adda is a formidable and destructive force who, through gaining a modicum of consciousness, has become a parasitic entity closely tied to her unwilling host. However, despite their differences, they recognize the potential strength they possess together.