THE HUMANOID

Dr. Watson has created his masterpiece – a beautiful woman made of metal. A wonder of science, Antoinette is a childlike innocent who holds the key to an ancient civilization that could save the world, or destroy it. And when a mad tyrant kidnaps the man she loves, Antoinette finally discovers the courage – and the amazing fighting skills – that are her true calling. — Description from AniList community (anilist.co).