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.

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.