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!?
My grades aren't that great,
Mis calificaciones no son tan buenas,
Mis notas no son nada del otro mundo,
Je ne suis qu’un élève moyen.
I miei voti non sono il massimo
Minhas notas não são tão boas,