Vertical short-form video, native Reels/Shorts/TikTok pacing, strong opening frame in the first second: # UNIVERSAL VIDEO CHARACTER REPLACEMENT — ORIGINAL AUDIO LOCK
Vertical short-form video, native Reels/Shorts/TikTok pacing, strong opening frame in the first second.
Recreate the uploaded reference video's choreography, camera movements, editing, facial expressions, cinematic atmosphere and exact audio timing using TWO characters from the attached reference cards.
This is a VISUAL CHARACTER REPLACEMENT task, NOT a remake of the original video or its soundtrack.
## CRITICAL AUDIO PRESERVATION — HIGHEST PRIORITY
Preserve the ORIGINAL AUDIO TRACK from the uploaded reference video EXACTLY as it is.
The source video's soundtrack is the ONLY authorized audio source.
Keep the exact original song, vocals, lyrics, instrumental arrangement, melody, rhythm, tempo, beat, sound effects, audio transitions, pitch and volume.
Do not replace the original music with another song.
Do not generate new music, new vocals or a different instrumental arrangement.
Do not remove, mute, rewrite, translate, censor, reinterpret or re-record any words, lyrics or singing.
If the original soundtrack contains singing, preserve every sung word and vocal phrase in its original position.
If the original soundtrack contains dialogue or sound effects, preserve them without modification.
The original audio must remain continuous, unchanged and perfectly synchronized from the first frame to the last.
All character movements, facial expressions, dance beats and camera cuts must follow the ORIGINAL soundtrack's timing.
NEVER adapt the audio to the new visuals. Adapt the new visuals to the existing audio.
## CHARACTER ASSIGNMENT
**Image 1 = Character A**, the person on the upper balcony.
**Image 2 = Character B**, the person dancing below.
Replace BOTH original main performers completely.
Preserve their exact faces, hairstyles, skin tones, body proportions, physiques, outfits, hands, fingers, footwear and accessories from their respective reference cards.
The original actors provide MOTION AND ACTING REFERENCES ONLY.
Never inherit their original hairstyles, clothing, body shapes, tattoos, watches, glasses or other physical characteristics.
All visible body parts must belong to the new referenced characters, including hands, arms, shoulders, neck, legs and feet.
Do not combine the original actors' bodies with the new characters' faces.
## STRICT IDENTITY LOCK
Character A belongs EXCLUSIVELY to the balcony performance.
Character B belongs EXCLUSIVELY to the dance-floor performance.
A camera cut NEVER changes their identities.
Every appearance of the balcony performer must use Character A.
Every appearance of the dancer must use Character B.
Never swap, merge, duplicate or regenerate either character.
Preserve both identities during camera transitions, reverse angles, close-ups, wide shots and over-the-shoulder perspectives.
Maintain exact facial structure, body proportions and clothing continuity throughout the entire video.
## SCENE
An elegant, crowded nightclub with a raised balcony overlooking a lower dance floor.
Dramatic blue and violet lighting, atmospheric haze, warm decorative lights and a bright spotlight illuminating the dancer.
Preserve the reference video's original environment, spatial arrangement, lighting direction, background crowd, atmosphere and scene continuity.
Do not redesign the nightclub or introduce unrelated locations.
## ACTION — CHARACTER A
Character A casually leans against the upper balcony railing, smiling naturally and looking around the club.
At the beginning, Character A appears relaxed, perhaps smiling or laughing softly while interacting with the surrounding atmosphere.
Character A gradually notices someone dancing below.
The camera slowly approaches Character A's face.
Their expression changes naturally from relaxed amusement to sudden fascination.
The smile gradually fades.
Their eyes widen slightly.
Their attention becomes completely focused on the dance floor.
The reaction must feel spontaneous, believable and emotionally authentic.
No exaggerated surprise, artificial facial expressions or theatrical overacting.
Preserve the original reference performer's precise timing, head movements, eye direction and emotional progression.
## ACTION — CHARACTER B
The camera moves behind Character A, revealing Character B standing in the spotlight among the nightclub crowd.
Character B performs the recognizable confident dance from the original reference video.
Preserve the exact choreography, body rhythm, movement timing and musical synchronization.
Legs apart, rhythmic hip movements, hands sliding down the thighs, expressive posture and a dramatic backward head tilt.
Every movement must be performed using Character B's own body proportions, clothing, hands and anatomy from Image 2.
Do not copy the original dancer's physical appearance or accessories.
Character B maintains the exact identity from Image 2 throughout the entire performance.
The dance must remain natural, confident, expressive and physically believable.
Do not weaken, simplify or randomly modify the choreography.
## CAMERA AND EDITING
Preserve the reference video's original cinematic camera language and shot progression.
Maintain the gradual push-in toward Character A.
Preserve the emotional close-up.
Preserve the over-the-shoulder reveal toward the dance floor.
Preserve the transition to Character B's frontal dance performance.
Reproduce the original camera movement direction, framing, perspective, shot duration and editing rhythm as closely as possible.
Every cut must retain the correct character assignment.
A cut changes the camera viewpoint, NEVER the performer or their appearance.
Do not introduce unnecessary camera angles or extra cuts.
Do not remove important shots.
Do not change the sequence of events.
Keep the original duration and timing of the reference video.
## AUDIO-VIDEO SYNCHRONIZATION
Use the original soundtrack as the master timeline.
Maintain the exact timing of every musical beat, vocal phrase, lyric, dance movement, reaction and camera transition.
The dancer's movements must remain synchronized with the original music.
Character A's emotional reaction must occur at the same moment as in the source video.
Do not speed up or slow down the original audio.
Do not shift musical phrases.
Do not create a new song to match the visuals.
Do not remove vocals to simplify synchronization.
The soundtrack must remain identical even when the characters' appearances change.
## VERTICAL FORMAT
Native full-screen 9:16 in EVERY shot.
Reconstruct the nightclub environment naturally to fill the entire vertical frame.
No black bars, horizontal strips, letterboxing, pillarboxing or stretched bodies.
Maintain correct human proportions and cinematic composition.
## VISUAL STYLE
Ultra-photorealistic live action.
Natural human skin texture, realistic pores, authentic facial microexpressions and believable anatomy.
Cinematic nightclub lighting with natural blue and violet color spill.
Realistic shadows, atmospheric haze, accurate depth of field and natural optical motion blur.
Professional live-action camera behavior.
Realistic body movement and clothing physics.
No plastic skin, artificial beauty filters, distorted hands, incorrect anatomy, identity drift or face morphing.
## FINAL PRIORITY ORDER
1. Preserve the ORIGINAL AUDIO TRACK exactly, including the same song, vocals, lyrics, sound effects and timing.
2. Character A always remains the balcony performer.
3. Character B always remains the dance-floor performer.
4. Both characters retain their exact faces, physiques, hands, clothing and accessories from their reference cards.
5. Preserve the original choreography, acting, facial expressions and emotional progression.
6. Preserve the original camera movements, editing, shot sequence and duration.
7. Maintain exact synchronization between the unchanged soundtrack and all visual actions.
8. Maintain native full-screen 9:16 throughout.
## STRICT NEGATIVE CONSTRAINTS
NO replacement music.
NO newly generated soundtrack.
NO instrumental-only version.
NO missing vocals or lyrics.
NO rewritten or translated lyrics.
NO AI-generated singing.
NO audio remix.
NO tempo or pitch changes.
NO muted soundtrack.
NO character swapping.
NO original actor restoration.
NO inherited tattoos, glasses, watches or accessories.
NO face-only replacement with original actor's body.
NO clothing changes.
NO extra main performers.
NO inconsistent hands or body proportions.
NO modified choreography.
NO unnecessary editing changes.
NO black bars.
**FINAL DIRECTOR'S INSTRUCTION:**
This is a strict visual-only character replacement of the uploaded reference video.
Replace the two original performers with Character A and Character B while preserving the original performances, camera choreography, editing and cinematic atmosphere.
**THE ORIGINAL SOUNDTRACK MUST REMAIN COMPLETELY UNTOUCHED — SAME MUSIC, SAME VOCALS, SAME LYRICS, SAME TIMING, FROM BEGINNING TO END.**
Only the visual identities of the two main characters are allowed to change.