Solo Birthday Party Cinematic Storyboard

A complex, multi-shot cinematic prompt for a birthday-themed video featuring a dramatic transition from a calm birthday wish to a fire-breathing highlight.

Prompt
Using the uploaded character reference image as the sole identity/costume criteria for the female, generate a 10-second 9:16 vertical short-form video with a real birthday twist. [Style] Real smartphone vertical shooting texture, outdoor park at night. Fixed master composition + 1 face close-up insert. Exactly 2 hard cuts (entering close-up, returning to original composition), no other camera movement. No push/pan/tilt/follow/digital zoom. Soft birthday atmosphere in the first half, rapid transition to an exaggerated strong twist in the second half. Shots 1-5 are all natural real-time speed, only the black and white section of Shot 6 is slow motion. [Scene] A bench in the center of an outdoor park at night, with grass, trees, and streetlights in the background. The bench is empty and the background is simple at the opening. The fixed master camera maintains the same position and composition throughout. [Female] Strictly refer to the uploaded image to maintain the same face, hair, body proportions, clothing, and accessories throughout; do not re-design the character. Face close-ups and wide shots must show the same face and makeup. Natural and gentle state in the first half. Key to the twist: the normal breath intended to blow out the birthday candle turns into a giant flamethrower. Immediately after slamming down, enter the explosion state without pause and maintain an exaggerated highlight pose. [Key Props] A green champagne bottle always in the right hand, a birthday cake with a lit candle always in the left hand. Viewed from the camera, the hand holding the bottle is on the left. The champagne bottle is open. Only real champagne liquid, white foam, and fine droplets come from the bottle. Fire must not come from the bottle; no fireworks, sparks, cold sparks, silver fire pillars, or magic particles. The cake is always horizontal, the candle remains lit, and the cake does not tilt, fall, melt, or char. [Shot 1: 0-3s Empty Bench Setting and Entrance/Sitting] Night park bench with fixed camera. Show the empty bench for a moment. Then the female enters from the right, holding a green champagne bottle in her right hand and a cake with a lit candle in her left. She walks to the center and sits naturally. Body in center, cake stable near chest. Camera is fixed throughout. [Shot 2: 3-4.5s Shaking Champagne] The female shakes the champagne bottle up and down about 3 times: raising to shoulder -> quickly lowering to waist -> raising -> shaking down. Movements led by arms with clear rhythm, looking like increasing pressure. Body and cake stay stable. [Shot 3: 4.5-5.8s Hard Cut Face Close-up: Smirk] Hard cut to face close-up. Face fills the vertical screen, warm streetlight outlines the contour, background is out-of-focus park. Stops shaking the bottle, stares at camera, expression turns from gentle to a smirk with one corner of the mouth up. Eyes slightly narrowed with a cunning light. Inhales deeply at the end as if to blow the candle. Hands unchanged below screen. [Shot 4: 5.8-6.5s Return to Original Composition: Slamming + Candle Blow Simultaneous Explosion] Hard cut back to the exact same fixed composition as Shot 1. Female is sitting in the center. Left hand raises the lit cake to face level, slightly lower than the mouth (towards right). Simultaneously, right hand raises the champagne bottle high and swings it down fast, slamming it towards the bottom right of her body (left side from camera view). Grip remains firm. At that exact moment, two effects start simultaneously without pause: Real champagne liquid, massive white foam, and droplets erupt vertically from the bottle on the left; Female blows hard at the candle—the breath becomes a massive orange flame jet, grazing the candle and extending far to the right. [Shot 5: 6.5-8s Color Highlight Continuous Spray] Female maintains sitting pose, continuously spraying orange flame from mouth towards the candle, flame extending horizontally to the right. Left hand keeps cake horizontal at face level, candle stays lit in the flame, cake doesn't melt or char. Bottle on the left continues vertical eruption of liquid/foam/droplets. Flame to the right, fountain to the left—opposite directions, no overlap. No fire from bottle. Champagne has real liquid physics. Flame illuminates the scene realistically. [Shot 6: 8-10s Black and White Slow Motion Birthday Poster Ending] At the most exaggerated highlight moment, the entire screen instantly hard-switches to saturation 0 complete black and white synced with the music beat, entering slow motion. Female continues flame spray in the same pose, foam and droplets scatter slowly. Synchronized with the B&W transition, white handwritten text appears at the top: Happy Birthday. No pose realignment, no angle change, no fades. Slow motion persists until the last frame stops at the peak pose for a poster ending.

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