Full Metal Panic! Movie 3: Into the Blue

Synopsis

The story begins with the escape of a young girl. The person who saved the girl from the enemy military helicopter is Sosuke Sagara, a member of the anti-terrorist organization Mithril. He was a soldier aboard the M9 (Gernsback), a humanoid assault weapon called the Armslave. The girl he rescued was a human called Whispered, and possessed black technology, which is technology that does not exist. Sousuke Sagara, who is now at the mercy of this black technology, is assigned to escort a Japanese high school girl, Kaname Chidori, who also possesses black technology. She, too, is a Whispered with black technology. Sousuke Sagara's former enemy, Gaurun, stands in his way to take away Kaname Chidori, the Whispered! He uses his armslave at will and gradually catches up with Sousuke Sagara and Kaname Chidori. (Source: Animate)