Hárbarth has finally been defeated—though at the cost of Rífa's life. Yuuto, now faced with the imminent destruction of Yggdrasil, has no time to mourn and must move forward with his plans to save the continent's people. As the new þjóðann, he has issued a decree mandating that all patriarchs fall under his banner. However, Oda Nobunaga, patriarch of the powerful Flame Clan, defiantly continues his march upon the Holy Capital... The epic battle between the two summoned patriarchs is about to begin! Can Yuuto's cheat abilities defeat the legendary warlord of old? The final showdown between the two mighty leaders begins in this 15th volume!