Video prompt: Youthful 4K UHD video, 9s, 60fps, loopable, me...

Video prompt: Youthful 4K UHD video, 9s, 60fps, loopable, medium shot, vertical composition, single Japanese high school student in navy sailor uniform (empty hands, no backpack) walking slowly along a cherry blossom-lined street. Background: Wooden houses with tiled roofs, a bicycle parked by the wall swaying in the breeze, pink cherry petals falling continuously (no other characters/animals). Dynamic design: Character action - slow forward steps, occasional head tilt to watch falling petals; background movement - petal fall, bicycle sway. Lighting: Soft diffused afternoon sunlight, pink tones, no text, no watermark. Style: Fresh, nostalgic aesthetic. --ar 9:16 (Vertical, 1080x1920, YouTube Shorts Standard)