Giant Hand Dressing Up Girl Video

Generate a 21-second, 9:16 vertical, ultra-realistic cinematic video.
[Scene] A bright, warm modern beige living room with white cloth sofa, plants, and natural light.
[Character] A young East Asian girl (5-8 years old), cute, standing in the center. Natural expressions: surprise, shy smile, happiness.
[Core Mechanism] A pair of giant real human hands enters the frame to change the girl's clothes as if she were a doll. Natural and smooth hand movements.
[Timeline] 0-2s: Opening with girl in pajamas. 2-4s: Giant hand removes the top. 4-6s: Hand removes the pants; puts on a beige cardigan. 6-8s: Hand puts on olive green shorts. 8-11s: Hand puts on rainbow socks. 11-13s: Hand puts on beige snow boots. 13-15s: Hand puts on a knit hat. 15-17s: Hand gives her a brown handbag. 17-21s: Final reveal of the outfit. Hand points at her like "done."
[Camera] Fixed front full shot with slight handheld breathing feel.
[Constraints] Character consistency (face/hair), realistic human hand proportions, smooth clothing transitions, no artifacts or text.