A dynamic anime-style swordswoman executing a lightning-fast iai-ken demonstration. She draws a glowing purple lightning sword, revealing a seamless combo of rapid thrusts, horizontal slashes, and aerial strikes. The blade crackles with bright purple arcs, leaving persistent electric trails and motion blur. Her long ponytail, flowing dress, and large serpent tail whip naturally with the momentum. The camera utilizes a low-angle dynamic tracking shot that stays locked on her upper body, smoothly following the blade's movement with occasional snap-zooms on impact points. She finishes by gracefully sheathing the sword in one fluid motion as the lightning fades. 4k, highly detailed, cinematic lighting, fluid animation, masterful choreography, elegant movement, high-speed action.