Yuuto and the Steel Clan seek to save the people of Yggdrasil, but they face their greatest obstacle in the form of the Flame Clan's Nobunaga, the would-be conqueror of the continent. As the two clans come to blows, Linnea holds off an assault from Shiba, the Flame Clan's greatest warrior, at the Wolf Clan capital of Iárnviðr. Faced with possibly the most powerful enemies it has ever encountered, can the Steel Clan protect its people from the threat of the Flame Clan?! As the destruction of Yggdrasil begins, the greatest battle in its history unfolds... Find out more in this 18th volume!