Rosy is extremely violent, eccentric, sadistic, and single-minded, eager to stalk and "break" things, mainly people while retaining distorted signs of a cutesy, childish demeanor. This is reflected in her speech, in which she often uses nicknames and simplified terms in a sing-song tone. She herself seems aware that the magic ring she used on herself "broke" her mind, but appears unconcerned with this fact, as her only focus now is Scourge. She is a character with a burning desire for revenge, especially on Scourge for wronging her, and will not stop at anything to get her ruthless revenge.