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.

Rescue comes unexpectedly in the form of more faces Echo recognizes from the Players almanac. Mu learns more about the war that happened ten years ago, and about the Core Part in her possession.

Echo and Mu continue their journey to find Jimi and end up in Londinium. In Londinium, Mu is asked to participate in their plans for Christmas, which is one week away.

With the appearance of Listeners, King of the Earless, the Earless have grown ever more destructive. Roz, Denka, Kevin, and Bilin must each decide how they want to face this crisis.