What is forgiveness? After the events of Exia, Lucifer asks that very question. Following the tragic end of his dream, he journeys to the city where that dream began. Kyrios. But Kyrios isn't the same as he remembers. Now a haven for humanity and Hateful alike, the city challenges everything Lucifer thought he knew about being Hateful, thanks to the work of the enigmatic Hateful group known as Silver Wing. However, despite their work, one man still stands against them, believing that both races are living a lie. The Hateful Killer. Soon, Lucifer will find himself caught between two different ideologies, both of which will make him question what it means to be Hateful, and how to view a Hateful past. Can Lucifer find forgiveness? Or, is he doomed to repeat the same mistakes as before? Amid this, Megidra, Greene and Diana Skagen wrestle with these questions themselves, and as Ethero's landscape changes, nothing will never be the same for either of them. Because war is coming. As the truths of Ethero arise, all four will question what it means to forgive, and whether their world can ever heal. Or does doom await it? The Titans stir again, ready to destroy everything...