Ultra-realistic cyberpunk alley at night, heavy rain, neon reflections, steam vents, holograms flickering. Wounded female cyber-ronin limps forward holding broken katana. Liquid metal nanotech crawls across her arm and rapidly forms a glowing combat suit with blue and magenta veins. Masked soldiers emerge through rain behind her. Camera follows low behind her footsteps through puddles, pushes close on nanotech forming, whip pans as katana reconstructs from energy shards. She turns and attacks with hyper-fast precision. Final frame: blade raised, rain split around it, neon city reflected in steel.