Full Metal Panic!

Mithril, a clandestine military organization armed with cutting-edge technology, dispatches a small unit on a high-stakes protection detail. Led by the capable Melissa Mao, sergeants Sousuke Sagara and Kurz Weber are tasked with guarding Kaname Chidori, a high school girl known as a “Whispered” who unknowingly carries revolutionary scientific knowledge—making her a target for intelligence services and other groups eager to exploit her.

To keep her safe at close range, Sousuke goes undercover as a student at Kaname’s school while Melissa and Kurz provide support from afar. His rigid combat training and lack of everyday social experience quickly clash with ordinary teenage life, drawing attention he can’t afford and leaving Kaname increasingly wary of the new classmate shadowing her. When a terrorist attack escalates the danger, Sousuke’s recognition of the culprit pushes him to defy orders in order to protect Kaname at any cost.