Lieselotte is a Captain within the Thaumaturges, the Miracle Makers, serving the Inquisition. She has black hair with straight bangs, typically worn in a long ponytail, and distinctive spots on her cheeks. She is often seen scowling while smoking a pipe. Her signature attire includes a black skintight jumpsuit, a long cape, large spiked pauldrons, and spiked cuffs attached to fingerless gloves, completed by the Inquisition's frill collar around the back of her head.

Personality-wise, Lieselotte is straightforward and blunt, voicing her opinions without hesitation. She displays less eccentricity than other Thaumaturges and maintains consistent hostility towards sorcerers, viewing them as enemies. This suspicion makes her confrontational in dealings involving sorcerers. She holds significant respect for Dart Dragunov, having served as his subordinate before her promotion, and her recommendation aided his appointment as a Thaumaturge.

In combat, Lieselotte activates her Miracle with the invocation: "Patrem Inquisitor, Founder Of The Miracle, May Your Divine Retribution Smite the Unworthy." This power allows her to remotely manipulate her two swords with high precision, speed, and range, controlling their movement through the air. Sigils manifest around her wrists during activation. The swords' attacks broadly correspond to her wrist movements but show complex control suggesting more than mere physical gestures. This offensive capability is fast, powerful, difficult to disrupt or evade, and effective for pursuing targets.

Her history includes service under Dart Dragunov prior to her promotion within the Inquisition hierarchy.