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!?
You're not needed anymore.
Ya no eres necesario.
Ya no eres necesario.
Tu ne sers plus à rien.
Ormai sei diventato inutile.
Você não é mais necessário.