Akira's in trouble—the battle with Old World automatons in the Iida ruins destroyed all his gear, and without it, he can't hunt relics! Meanwhile, Katsuya and Yumina are eager to return to each other's side. To do so, Yumina is mastering the skill she learned from Akira: controlling her sense of time. Unfortunately, the power struggle among Kugamayama's leaders grows more ruthless by the minute, and everyone is dragged into the conflict. Ideals, hopes, and wishes all collide. What fate lies at the end of their struggle—at the end of their desires?