I. Generation Goal

Generate a complete, continuous 15-second Chinese Xianxia martial arts movie short film.

Overall Style Requirements:
- Cinematic realistic quality
- Pure traditional Chinese Xianxia aesthetic
- Mature and high-level martial arts action design
- Arri Alexa cinematic texture
- Clear and stable facial micro-details
- Natural volumetric lighting
- Delicate film grain
- 24fps cinematic motion quality
- Natural motion blur

II. Core Action Philosophy

Process real martial arts body principles for cinema and Xianxia:
- Flexible movement
- Stable footing
- Diagonal dodging of weapon tips
- Strict distance control
- Feigned retreats to lure the enemy
- Seizing attack lines
- Rapid offense-defense reversals

Visual Appeal Points:
- Clear and readable spatial geometry
- Dangerous timing differences (time gaps)
- Distance gaps between long and short weapons
- Realistic silk fabric movement
- Metal clashing impact
- A memorable finishing move

Prohibited for 'coolness':
- Excessive meaningless sword aura/beams
- Overblown light pollution/effects
- Teleportation
- Random special effects
- Illogical energy attacks

III. Reference and Environment Settings

Character Identity Anchors:
- @Image 1 → Character ID A | Sword Immortal Senior Sister
- @Image 2 → Character ID B | Junior Sister

Environment DNA:
All backgrounds and location reference images uploaded in this round jointly determine a unified environment DNA.

Before composition, analyze and merge compatible elements:
Real terrain, architectural language, spatial scale, material aging, vegetation, water bodies, weather, mountain mist, cloud movement, primary light direction, reflection relationships, atmospheric depth, foreground/midground/background layers, character movement paths, and logical combat routes, then recombine them into a unique, unified, plausible, physically reasonable, and spatially continuous new space.

IV. Environmental Movement Principles

Background must remain vivid but narratively neutral.
Continuous natural movements include: Wind, water, mountain mist, vegetation, fabric, distant figures, dust, reflections.

Requirements:
- Movements follow real physical laws
- Maintain natural parallax
- The environment does not create danger or assist any side
- Only when characters physically interact with the environment (step, sweep, collide) are normal physical feedbacks allowed (e.g., dust rising, water ripples).

V. Character Settings

Character ID A | Senior Sister | @Image 1
Consistently a 25–30 year old East Asian female: Oval face, fair natural skin, dark almond eyes, black long hair partially pinned with white jade, tall and slender. Wears a white embroidered silk Hanfu, silver belt, and jade pendant. Carries a single silver straight sword.
Performance: Very steady, calm, restrained, precise reactions without unnecessary flair.

Character ID B | Junior Sister | @Image 2
Consistently a 20–25 year old East Asian female: Round, agile face, braided black hair, petite. Wears a green linen Hanfu and dark belt. Observing the battle from a distance with an elderly master.

Supporting Characters:
- Enemy Spearman: Wearing dark charcoal gray martial arts attire, holding a spear with dark red tassels. Professional and explosive movements with a long-weapon advantage.
- Elderly Master: Observing from a distance, non-intervening, providing a single judgment at the end.

VI. Shot Structure

0–5s | Wide or Long Shot | Establishing Battle Space and Distance Advantage
Camera: ~24mm, slow lateral tracking.
Content: Establish positions and weapon distance advantage. Senior Sister faces the Spearman while the Junior Sister and Master observe. The Spearman thrusts suddenly; the Senior Sister performs a narrow diagonal step, parrying the spearhead with the side of her sword and returning to stillness instantly. Focus on judgment and distance control.

5–10s | Medium or Cowboy Shot | Three-stage Attack and 'Disarmed' Reversal
Camera: ~40mm, stable tracking.
Content: Spearman performs a three-part attack (thrust, sweep, tail-strike). Sister retreats half a step, leaving a gap. Enemy commits to a lunge; she dodges and guides the spear away with a circular sword motion, closing the distance. The enemy spins the spear, knocking her sword into the air. Visual reversal: 'The sword immortal is disarmed.' Junior sister reacts with shock; Master is steady.

10–15s | Close-up or ECU | Close-quarter Blind Spot Conclusion
Camera: ~75mm.
Content: Enemy pursues for the kill. Sister steps into the spear's blind spot, controlling the spear shaft with her forearm and scabbard. She spins past the enemy as her falling silver sword descends behind her. She catches the sword behind her back without looking and stops the blade an inch from the enemy's throat. Ending: Close-up on enemy's pupil, focus shift to Sister's calm eyes and hair in the wind. Master: 'She captured the sword, but not her momentum.'

VII. Sound and Motion Requirements
- Sound: Mandarin dialogue, precise metal clashing, wind, footsteps, fabric rustle, breathing. Music must not drown out sound effects.
- Motion: Clear weapon trajectories, realistic body weight/inertia, natural motion blur, visual continuity, stable weapon assets. No teleporting, random aura, or subtitles.

VIII. Total Output Requirements
- Duration: 15s
- Aspect Ratio: 16:9
- Three continuous clear shots
- Optimized for Seedance 2.0 Fast
- Consistent identity and spatial logic

IX. Negative
blurry, bad quality, low quality, low resolution, noisy, jpeg artifacts, watermark, text, subtitles, error; deformed, mutated, bad anatomy, poorly drawn hands, bad composition, out of frame, disfigured; inconsistent character, changing clothes, face morphing, hairstyle change, background shift, glitching cuts, disappearing props, random sword aura, excessive energy effects, overexposed light pollution, teleporting movement, unreadable weapon trajectories, fake combat, weak body mechanics, exaggerated anime action, modern elements