Vertical smartphone video, 9:16. A young American pop-idol girl with Sabrina-Carpenter-like vibes—sweet, confident, friendly smile, soft blonde waves. She stands in a bright, cozy American home kitchen with warm natural lighting. She holds the same unique chef knife from the reference image—wide curved blade, shiny hammered steel texture, wooden handle with visible screws, integrated hand-hole design. No deformation or warping of the knife. She gently demonstrates chopping motions in the air and explains how sharp and effortless the knife feels, speaking with cheerful, engaging influencer energy. Close-up shots show the blade texture, the handle, and the edge clearly. Clean aesthetic, realistic lighting, no distortion.”