Jindai High School is just an average High School with very normal students....well almost normal. Meet Sousuke Sagara, Kaname Chidori, and Mariame Tate. Sousuke is a Sergeant in the Mithril army, Kaname is a normal High School Girl with a gift...well she is what is called a Whispered, and Mariame is also a normal high school girl with a gift and a secret....ok ok....so Mariame is a Whispered Princess believe it or not. Mariame, or Miri, leads a squad in a group called The Imperials. Along with Mithril, they protect the Whispered ones as well, while maintaining peace and serenity back in the mother land. Miri keeps her Whispered abilities a secret to prevent her capture, but someone in her army has been slowly leaking information about her abilities as an Arm Slave pilot which will lead those to believe that she is a Whispered. Now along with Kaname, Miri is being targeted.