Echo makes a simple living, sorting through trash for anything of value. But one day, he finds a girl in the scrap field, and suddenly, the legendary Players who pilot mecha called Equipment to fight the Earless aren’t just stories from faraway places.

The Earless seem unstoppable, bent on destroying the world that has treated them so cruelly. Echo, with his newfound power as a Player, challenges the King of the Earless with his trusty AC30.