Bambietta is a slender young girl with long, straight, dark purple hair and eyes of the same color. Her attire is a variation of the Sternritter's typical white uniform, consisting of the order's signature hooded cloak, a thigh-length trench coat, knee-high boots, a miniskirt, and black stockings with a red trim on her gloves and boots. She wears a red heart-shaped belt buckle and a white cap with gold trimmings, which features a black peak and the Wandenreich insignia emblazoned on its front. Bambietta is a particularly sadistic individual, evident in how she screams in joy as she slaughters her enemies. She is not above attacking her male subordinates to vent her frustration, sometimes bringing them into her room for "special relief" before killing them without remorse. She does not believe in fighting if one has already thrown away one's life. Bambietta refers to herself as the self proclaimed "leader" between her and some of her fellow Sternritter in the group of the Bambies, and dislikes being abandoned by them and finds it quite embarrassing.