Derieri has a laid back and nonchalant demeanor. She is usually calm and does not seem to be shocked by many events. She expresses laziness and boredom the majority of the time. Though, Derieri has a very quick temper when certain buttons are pushed, such as her sister's death and when facing Meliodas. She has a very strange way of speaking, usually prefacing her comments with "To say from the ass"or "Taking it from the ass". Which roughly means "long story short".