In a future world where invaders from another dimension have driven humanity to live on floating islands in the sea, Hida Kizuna becomes a member of the elite Amaterasu squadron.  In order to power up the mech suits of this all-girls combat team, he has to... do lewd things to them!?
What's an off-campus student doing here?!
Che ci fa un normale studente
 fuori dal campus?!
O que é que um aluno 
perdido está fazendo aqui?!