Wind blowing across the bridge

A woman with long silver hair, wearing a white dress, is tracing characters resembling **two "S" shapes** with the index finger of her right hand. Those "two S-like shapes": - Must be depicted using light-blue magical wind. - The first character must be an "S," and the second must be a "9." The background: - A wooden bridge in a forest and a lake (emphasizing nature). Genre: Fantasy. Camera angle: Must be an over-the-shoulder shot. Highly beautiful. 16:9 aspect ratio, anime-style illustration. In addition to those light-blue magical numbers, depict a few more mathematical formulas around her. She is tracing the "S9" with her finger while walking across the bridge. She must be depicted walking across the bridge.