NEW EDITION AVAILABLE! CHECK MY PROFILE! The divine power incident took a much different turn than anyone could have possibly expected. With the world fearing the new threat, the members of S.O.N.G attempt to set things right before they lose everything. And caught in the middle of it all is a girl called Kohinata Miku, who vows to take back their happy days. Spoilers for AXZ.

A restless soul, haunted by the sole memory of endlessly falling down to the abyss reaching for the fading light is called out of the darkness. A voice called out, drawing back someone who had sunk to the abyss back to the surface of the sea...longing for something. A former comrade soon discovers that an old friend has returned, but is no longer the same.