Create a polished interactive 2.5D anime study companion pro...

Prompt

Create a polished interactive 2.5D anime study companion prototype for the browser. The character is Yuna, the female mascot of Tokki Academia. IMPORTANT: This must NOT be a 3D character. Do not build the character from 3D primitives, meshes, spheres, cylinders, or a traditional 3D model. Do not create a chibi 3D figurine. The goal is a high-quality 2.5D anime character, conceptually similar to a Live2D-style interactive character: a detailed 2D anime illustration that feels alive through layered parts, subtle deformation, independent movement, facial expressions, parallax, and procedural animation. The final result should feel like a premium anime companion application, not a technical rigging demonstration. CHARACTER DESIGN Yuna is a young adult anime woman with a warm, intelligent, friendly appearance. Her proportions should be normal attractive anime proportions, approximately 7 heads tall. She is NOT a child and NOT a super-deformed/chibi character. She has a soft oval face, fair warm skin, subtle rosy cheeks, a small delicate nose, and large expressive dark brown eyes with detailed dark irises, glossy highlights, dark upper eyelashes, and a gentle friendly gaze. Her default expression is a bright, natural smile with a slightly open mouth. Her personality should visually communicate warmth, intelligence, optimism and approachability: the feeling of a slightly nerdy but very caring study companion. HAIR Her most recognizable feature is her very long dark brown-to-near-black hair. The hair is tied into a high side ponytail positioned toward the upper-left/back side of her head from the viewer's perspective. The ponytail is extremely full and long, reaching approximately to her waist or hips. It should have many flowing tapered strands, soft waves toward the ends, and subtle warm brown highlights. She has long layered bangs framing the forehead and face, including several thin loose strands around the cheeks. A large dark navy-blue fabric bow sits prominently at the base/top of the ponytail. The bow and ponytail are important identity features and must remain recognizable. CLOTHING Yuna wears a Japanese-inspired Tokki Academia school uniform. Her upper outfit consists of a warm ivory/off-white cardigan with long sleeves. The cardigan is soft and slightly oversized, with natural fabric folds, ribbed cuffs and hem, and subtle buttons near the lower front. Underneath is a white sailor-style blouse with a wide navy-blue sailor collar. Thin white accent stripes run around the navy collar. At the center of her chest is a large dark navy-blue ribbon bow. On the upper chest is a small rectangular navy badge with the word "tokki" in lowercase white letters. She wears a dark navy pleated school skirt. The overall palette is intentionally restrained: near-black/dark brown hair navy blue warm ivory white natural warm skin tones Do not introduce purple as the dominant character color. VISUAL STYLE High-quality contemporary Japanese anime illustration. Clean professional linework. Soft controlled cel shading. Subtle gradients only where appropriate. Detailed expressive eyes. Beautiful layered hair. Natural fabric folds. Soft warm skin shading. Avoid a generic western cartoon aesthetic. Avoid plastic-looking 3D rendering. Avoid overly simplified vector art. Avoid excessive fantasy elements. Avoid sexualized proportions or clothing. She should look like a polished anime mascot from a premium Japanese mobile or desktop application. 2.5D CONSTRUCTION Build Yuna as a modular layered 2.5D puppet. Conceptually separate at minimum: hair back ponytail ponytail secondary strands hair front side hair strands bow head face left eyebrow right eyebrow left eye right eye left pupil/iris right pupil/iris eyelids mouth blush neck torso cardigan chest ribbon left upper arm left forearm right upper arm right forearm left hand right hand skirt The visual result must still look like ONE coherent professional anime illustration. The layer structure must not be visually obvious. ANIMATION Yuna must feel alive even when the user does nothing. Implement subtle continuous idle behavior: gentle breathing very small torso movement natural irregular blinking subtle head movement slight hair movement secondary ponytail movement tiny bow movement very subtle body sway Her eyes should softly follow the pointer when appropriate. Movement should be restrained and organic. Do not make her constantly bounce like a game character. FACIAL EXPRESSIONS Implement at least these clearly distinguishable emotional states: neutral happy excited laughing surprised thinking worried sleepy mildly annoyed Expressions should modify multiple facial components together: eyes, eyelids, eyebrows, mouth, cheeks and subtle head posture. Do not simply swap the mouth. Transitions between expressions should interpolate smoothly. INTERACTIONS Provide simple controls to demonstrate: Wave Affection / Pat Cheer Think Sleepy Surprised When greeted, Yuna should smile and wave naturally. When receiving affection, she should become slightly bashful/happy, with stronger blush, softer eyes and a small head tilt. When cheering, she should become visibly excited and perform a short celebratory movement. After each interaction, smoothly return to the idle state. 2.5D DEPTH Use subtle parallax between the back hair, body, face, front hair and foreground elements when the pointer moves. The effect should create depth without ever looking like a rotating 3D model. PERFORMANCE This is intended eventually for an educational web platform used on laptops, tablets and mid-range smartphones. Prioritize lightweight rendering. Do not use a heavy 3D engine just to simulate 2D. Respect prefers-reduced-motion. Animation should degrade gracefully on weak devices. The character system should be conceptually capable of later supporting interchangeable clothing, hairstyles and accessories without rebuilding the entire character. PROTOTYPE PRESENTATION Place Yuna inside a clean, minimal Tokki Academia study companion interface. Use a mostly white/light neutral interface with restrained navy accents. The character should be the visual focus. Include a small interaction panel that allows testing her expressions and animations. Do not spend most of the effort building dashboards, timers, statistics or unrelated application functionality. THIS PROTOTYPE IS PRIMARILY A TEST OF THE CHARACTER SYSTEM. Success means: Yuna looks like a professionally illustrated anime character, Yuna feels alive while idle, her facial expressions are emotionally readable, her movements feel natural, the 2.5D depth effect is convincing, and the architecture clearly demonstrates that clothing and accessories could later be modular. Prioritize character quality and animation quality above every other feature.

A system prompt was added to support web rendering