In order to save Horizon, the newly elected Chancellor Tori must take his army through the Testament Union's best ground defenses. Meanwhile, the battle over the skies will be determined by a God of War and two witches in hiding. Who will reign supreme over ground and air, and will they get there in time to save Horizon?

With the Testament Union breathing down their necks, Tori and the rest are at their wits' end now that the High Pope has unveiled his trump card: The Armor of Deadly Sins - Lust. With it's incredible defensive capabilities, there's only one thing Tori can do to stop him: the impossible.