Steel Angel Kurumi is about Kurumi who was the most powerful creation ever invented. Designed by a brilliant mind, using otherworldly technology, bred for military use, the Steel Angel's intent was as revolutionary as it was mysterious. But when a young boy accidentally awakens the Steel Angel Kurumi, he becomes her Master and science and strategy are thrown a curve.
Now this multi-million dollar soldier is taking orders from a boy - and other forces are not happy about it. So Kurumi and her young master must seek out a secret lab and discover dangerous answers. Namely, why was Kurumi created in the first place? What is her true purpose? And why is a mysterious organization activating other beautiful, seductive, and powerful Steel Angels to destroy her?