CONCEPT: Create a 30-second ultra-realistic personal video of a young woman working alone in a small public aquarium after closing time. She is cleaning the glass of a large aquarium when the building briefly loses power. The emergency lights come on, and the fish continue moving through the darkness. She watches them quietly until the main lights return. The entire story happens inside the aquarium. No shopping, no café, no market, no walking-home sequence. The mood should feel mysterious but completely believable. FORMAT: 30 seconds • 16:9 • 1080p • photorealistic live-action • handheld personal-camera footage MAIN CHARACTER: A young Japanese woman in her early 20s with short dark-brown hair tucked behind her ears. She wears a simple dark-green work shirt, loose black trousers, white sneakers, and a small blue fabric hair clip. Her face, hairstyle, clothing, hair clip, body proportions, and identity must remain exactly consistent throughout. LOCATION: A small neighborhood aquarium in Yokohama, Japan, around 9:30 PM after closing. The interior contains: large glass fish tanks, smaller illuminated tanks, concrete floors, cleaning buckets, glass-cleaning equipment, quiet corridors, small information boards, reflections from aquarium lights, and a staff-only doorway. The aquarium should feel modest and slightly old rather than luxurious. No recognizable aquarium brands, logos, famous attractions, or tourist landmarks. CAMERA STYLE: The footage is casually recorded by another woman who is helping her after closing. Use realistic handheld consumer-camera behavior: slight natural shake, imperfect framing, occasional autofocus hunting, reflections interfering with focus, exposure adjustments around bright aquarium tanks, natural motion blur, mild digital noise, slight compression. No stabilization, no artificial bokeh, no commercial music-video camera movement. SHOT BREAKDOWN: 0–5 seconds — Cleaning the tank: Open with a close handheld shot of the woman's hand wiping algae from the outside of a large aquarium. Fish move naturally behind the glass. The camera slowly tilts upward toward her face. She looks at the camera and smiles slightly. "Almost finished." 5–10 seconds — The fish: She steps sideways along the aquarium. A large school of small silver fish suddenly changes direction together. She stops cleaning and watches them. The camera moves closer to the glass. The fish pass between the camera and her reflection. 10–14 seconds — Power cut: Without warning, the main aquarium lights switch off. The room becomes almost completely dark. She freezes for a moment. Only the emergency lighting remains. She quietly says: "Oh…" The camera exposure struggles for a second before adjusting naturally. 14–20 seconds — Emergency light: The emergency lights illuminate the corridor with a very soft, dim glow. The aquarium water is still faintly illuminated from a backup tank light. She walks closer to the glass. Her face is partially reflected in the aquarium. Fish continue swimming normally. No supernatural effects. 20–25 seconds — Quiet moment: She sits down on a low bench beside the aquarium. She watches the fish silently. The camera operator sits or crouches nearby. The only movement is the water, bubbles, and fish. She smiles quietly. No dialogue. 25–30 seconds — Lights return: The main lights suddenly come back on. She squints slightly because of the brightness. She laughs softly. She picks up the cleaning cloth and looks toward the camera. "Okay. Now I'm really finishing." The camera shakes slightly from laughter. End naturally. AUDIO: Only authentic aquarium ambience: water filtration, gentle bubbling, low electrical hum, cloth against glass, footsteps on concrete, emergency light click, electrical power returning, quiet breathing, natural laughter, distant building ambience. No background music.