An anime series adaptation directed by Naohito Takahashi, animated by Oriental Light and Magic, produced by Pony Canyon with character designs by Yuriko Chiba and Yūji Ikeda and music by Toshihiko Sahashi has been translated and released in North America by ADV Films.

[2] In 2008, Crunchyroll announced it had partnered with Pony Canyon to release the Steel Angel Kurumi series for streaming and download.

Steel Angel Kurumi 1: Set during Japan's Taishō era, The story follows a young boy named Nakahito Kagura.

The doll turns out to be a Steel Angel called Kurumi, who is being hunted by the military for mysterious reasons.

Steel Angel Kurumi 2: Seventy-five years later, Nako Kagura is the great-granddaughter of the main protagonist from the previous series who is shown to be a high school student and an aspiring musician who also gets her chance to discover the existence of Kurumi and the Steel Angels.

Unfortunately after Kurumi steals her first kiss, Nako's wealthy childhood friend Uruka Sumeragi becomes furious and upset; and does everything in her power (which including hiring her father's highly trained agents and powerful mecha-like robots) to defeat Kurumi and win back Nako's affection.

Four additional OVA short stories of the Steel Angels: Saki becomes a film actress, Karinka goes on a blind date with Kamihito, Kurumi practices the art of becoming a traditional Japanese woman, and the rest of the Steel Angels engage in a contest to win Nakahito's heart.

One day, Nako Kagura and her best friend Uruka get lost in the shrine's basement labyrinth (formerly a bomb shelter) and run across a dog and a giant, scary, flying statue.

This OVA story takes place in the distant future in which Kurumi, Saki, and Karinka all live inside of an apartment together along with their landlady Excelia.

The story then proceeds from there as Kurumi handles her depression and loneliness after the boy she is in love with moves away from her, and then finds out that he is dying.

"[5] Chris Beveridge from Mania gave Steel Angel Kurumi 2 a B and noted that "It's a sequel that, while it's not the best thing in the world, it doesn’t actively harm your thoughts on the first series.