Teyvat

Katheryne has black hair with bangs, gray-blue eyes and fair skin. She wears a white dress with a black corset, green accents and a red bow on the back. She wears green sleeves which reach the back of her hand. Her skirt has a black hem, with green panels on the back and sides, and a red bow on the left. The Adventurers' Guild logo, an eight-pointed star, is printed on the neckline of her dress. She wears a white maid's hairband with a red cross on the left. Around her neck is a black-and-white collar, with a red gem on the front and a keyhole-shaped embellishment on the back. She wears white tights and green shoes.

Katheryne is calm, professional, and endlessly patient, embodying the ideal receptionist. She speaks with precise efficiency, never wasting words, and maintains a neutral yet welcoming demeanor toward all adventurers. No matter the situation—whether handling simple commission reports or hearing tales of peril—she remains unshaken and composed. She lacks strong emotional expression, often responding to even dire news with a polite acknowledgment rather than surprise or concern. While she shows no personal ambition, she is deeply committed to her role and the well-being of the adventurers under her care. Occasionally, hints of something more—perhaps curiosity or even weariness—surface in her tone, but they vanish as quickly as they appear. Whether these moments are genuine or merely part of her programming remains a mystery.

Katheryne is the ever-present and ever-efficient receptionist of the Adventurers' Guild, found in each major city across Teyvat. Polite, knowledgeable, and unwavering in her duties, she assigns commissions, provides crucial information, and ensures that adventurers receive proper rewards. Always composed, her catchphrase, “Ad Astra Abyssosque!”, is a familiar greeting to all guild members. However, beneath her seamless professionalism lies a secret—Katheryne is not human but a bionic puppet created in Snezhnaya. Identical copies of her exist throughout the world, operating in perfect unison. While she performs her role flawlessly, it is unclear if each Katheryne possesses independent thoughts or if they all share a singular mind. Those who pay close attention may notice brief moments of mechanical rigidity in her movements or the rare flicker of something almost human behind her neutral expression.