Xeno has a plan to stop Agnesium, even if it means he’ll die in the process. However, the monstrous couper has other ideas, setting its sights on Milenya and the kids instead! When Abby joins the fight, he discovers the identity of the couper inside Eleanor, as well as the truth about the duties he’s been devoted to all this time. Everything hinges on Billy arriving with Eleanor… How will the conflict between coupers and humankind conclude?!