Little is known about Mildred Arbogast’s early life or origins. She is first introduced in the city of Sauville, operating under the guise of a nun who sells donated goods for profit. In reality, she is a thief using this disguise to carry out illicit activities. Her deception is quickly exposed with the help of Victorique de Blois, leading to her capture by local authorities.

Despite her criminal background, Mildred is later released and temporarily joins Victorique and Kazuya Kujō during an investigation, acting under the orders of Inspector Grevil de Blois. Though initially deceptive, she proves to be resourceful and maintains a lively presence during their interactions.

Mildred Arbogast is a young woman with gray eyes and distinctive brown hair styled into a large, wiry mass of curls atop her head. She also has two tightly curled locks framing each side of her face and a noticeable scattering of freckles across her cheeks.

Her first appearance in the series is in disguise, wearing a nun’s habit while posing as a nun who profits from selling donated goods. After discarding her false identity, she changes into a more revealing outfit, a yellow, sleeveless dress with a low neckline that exposes a significant portion of her chest.

Despite her initial appearance in a nun’s habit, Mildred Arbogast is an outgoing and uninhibited individual. Her fashion choices are notably bold and unconventional for the era, reflecting a personality that defies traditional expectations. She is also shown to have a strong fondness for alcohol, often seen drinking even while in disguise as a nun, an inconsistency that Kazuya Kujō eventually notices.

Mildred has a playful and teasing side, particularly around those she feels comfortable with. This is most evident in her interactions with Inspector Grevil de Blois, whom she frequently flusters with her bold behavior and forward remarks.

Kazuya Kujō
Mildred first encounters Kazuya in Sauville while disguised as a nun. Though initially wary of her, Kazuya quickly realizes her suspicious behavior, particularly her drinking habits, which conflict with her assumed role. Their interactions remain limited, though Kazuya is instrumental in uncovering her deception.

Victorique de Blois
Victorique plays a key role in exposing Mildred’s true identity. While their direct interactions are minimal, Victorique’s sharp deductions lead to Mildred’s capture.

Grevil de Blois
Mildred appears to enjoy teasing Grevil and behaves in a flirtatious, playful manner around him, often to his discomfort. Despite their contrasting personalities, Grevil allows her to accompany the group during a later investigation, suggesting a degree of trust or usefulness.