Complex sentence: This act provokes Class Zero, an elite class who draw magic from their souls instead of the crystals, to drive back the Militesi forces from the Vermillion Peristylium: during the conflict, Izana Kunagiri, Machina's older brother, is killed.
Split into simpler sentences: This act provokes Class Zero, an elite class who draw magic from their souls instead of the crystals, to drive back the Militesi forces from the Vermillion Peristylium. During the conflict, Izana Kunagiri, Machina's older brother, is killed.