Arm Slave pilot Sousuke Sagara enters the most dangerous battle-zone of his career: high school. His mission: Protect the young Whispered, Kaname Chidori.

Sousuke Sagara accepts his mission to protect Kaname with zeal - maybe a little too much zeal. His habit of threatening every suspicious-looking character in sight draws the wrath of Ms. Kagurazaka.

Tessa wavers uncertainly before ordering an attack on the Whispered Research facility. Meanwhile, Sousuke, Mao, and Kurz tail a suspicious-looking character that has crept into Kaname's apartment.

Kaname’s plane gets hijacked by terrorists led by Gauron - who is supposed to by dead. Sousuke is frantically formulating a rescue plan when he feels the cold weight of a pistol pressed to his temple.

When Kaname and Sousuke find their escape from the terrorists blocked, Sousuke uses a Savage to begin an AS battle. The skirmish is interrupted when Gauron executes a perplexing move.

Kaname, Sousuke, and Kurz are out of options, so Sousuke suggests that Kaname should flee on her own. Not only does she refuse, she manages to save all three of them!