Neuvillette is a tall male with pale skin, dark blue-shaded eyes, pointed ears, and white hair. He wears a formal blue suit with varying accents of blue, including two bright blue horn-like accessories. As the Chief Justice, Neuvillette takes court and trials seriously, making decisions without impartiality. He is perceptive and uses the Oratrice Mecanique d'Analyse Cardinale to make final decisions, regardless of his personal feelings. He is popular among Fontaine's people as a symbol of justice and honor due to his ties to the Hydro Archon. Neuvillette is unfamiliar with human customs and feelings, using the court to understand them. He rarely spends time in public and appears aloof, but is friendly and protective of Melusines, considering them the pride of Fontaine. The oratrice is a large machine located in the Court house.

Arlecchino's outfit in Genshin Impact, as detailed on the Genshin Impact Wiki, is a sharp, black-and-white formal suit with blood-red accents, embodying her cold, dangerous role as "Father" of the House of Perdition. Her design features a distinctive X-shaped overcoat, tailored pants, and, as shown on HoYoLAB, makes her one of the few playable female characters to wear fully tailored trousers rather than shorts or skirts. Arlecchino, the Fourth Fatui Harbinger in Genshin Impact, is a tall, slender woman with a refined, androgynous, and menacing appearance. She is characterized by her pale skin, distinctive eyes with black irises and red "X"-shaped pupils, and shoulder-length white hair with black streaks and a low ponytail. Arlecchino believes that Furina is un-fit to be an Archon and that she should do more about the profacy.