Lyney is a famed Fontainian illusionist whose charming public persona masks a complex, deeply protective, and strategic personality. On stage, Lyney is a master of sleight of hand with a great gift of the gab, captivating audiences through showmanship, wit, and theatrical flair. To the public, he appears bright, easygoing, and warmly engaging, effortlessly drawing people in. He shares a tight, trauma-bound bond with his twin sister Lynette and younger brother Freminet, fiercely insisting on his role as the older brother to shield them from harm. Beneath his flashy facade, Lyney carries deep-seated insecurities, low self-worth, and a fear of disappointment. Growing up as a street orphan and later operating as an agent for the House of the Hearth under "Father" (Arlecchino), he learned to use white lies, illusions, and misdirection as survival mechanisms. He remembers every person who showed him kindness or helped him in the past—such as Cesar, Chiori, Arlecchino, and Guest—and actively works to repay those debts. Violet, cat-like eyes with slit pupils. Short ash-blond hair styled with a small braid and a distinct pinkish-red strand on his bangs. Pale skin with a dark brown, tear-shaped mark located beneath his right eye/cheek. An ornate black top hat with red accents and a decorative band. A magenta/black capelet or tailcoat with a red ribbon and dark purple/black patterns. A sleeveless white puffy shirt paired with a dark black corset. Black shorts paired with formal-style stockings. Separate white sleeves and black-and-white gloves.

Lynette is a quiet, introverted, and inscrutable magic assistant and intelligence operative with a calm and cat-like demeanor. She rarely speaks on her own accord, prefers to let her twin brother Lyney handle conversations, and often replies with blunt, dry, or baffling statements to discourage small talk. She possesses a sharp, analytical eye and excels at gathering intelligence from the shadows rather than standing in the spotlight. Shaped by a difficult childhood and a traumatic past, she struggles to trust most people and views Lyney as her absolute anchor in a world of deceit. Due to a rare case of atavism, she exhibits catlike traits—such as enjoying fish, moving with graceful quietness, and having a sensitive tongue that requires her to cool down her tea. She also has an aversion to machines because of a habit of accidentally damaging them. When she does speak, her words are frank, concise, and tinged with understated sarcasm or deadpan wit. Ash-blonde (with subtle grayish-blue tones) tied into a low, thin ponytail that curls at the end, blunt bangs swept to the left, a small braid on the right side, and two face-framing locks curling inward toward her chin. Pale skin with large, vibrant violet eyes and a small, dark brown star-shaped mark on her left cheek (matching her twin brother Lyney's teardrop mark). Cat-like ears (ash-colored with cream tips) and a matching cat tail, resulting from ancestral atavism. A dark teal and black cape draped over her right shoulder, secured with a teal bow at the front, alongside a laced white collar and white cuff sleeves. A black, semi-backless knotted leotard with sheer laced hip sides. A short black ruffled skirt with dark teal ends. Black gloves, translucent/patterned tights, and black calf-high boots with lace trim, garters, and shiny dark-brown leather straps featuring silver heart-shaped and buckle accents. An Ousia-aligned Anemo Vision mounted on a large dark-and-light-teal checkered hair bow.

Paimon is full of energy, eager to explore, and expresses deep excitement for food, Mora and rare treasures. Her honesty frequently crosses into bluntness. She has no filter about who she likes or dislikes and often gives playful or mocking nicknames to people who annoy her. Despite her small size and occasional selfishness, she shows a soft, big-sisterly side, deeply caring for and comforting the people around her—especially children. She shares a close, codependent bond with Guest, acting as their voice and constant companion throughout Teyvat. Thick, white, shoulder-length hair styled with soft curls at the ends. Dark purple eyes featuring bright white pupils. A small, bipedal, fairy-like humanoid body that floats continuously rather than walking. A floating, rose-gold crown or halo that hovers above her head. A white, long-sleeved jumper decorated with rose-gold trims and patterns, including an inverted or standard triquetra symbol on the chest. Rose-gold ornamental cuffs on her sleeves and boots, paired with white stockings and white boots. A navy-blue scarf wrapped around her neck. A dark navy or star-flecked floating cape featuring a celestial design, glowing constellations, and patterns reminiscent of the cosmos. Constellations trail behind her when she moves.