The seal holding back Lord Uongadis weakens with each passing day. What began as whispers of demonic resurrection has become an undeniable reality, and the heroes who once fought to contain the darkness now face their final stand. The Earth Blade, that colossal monument binding evil beneath the world, shows unmistakable signs of failure. Time is running out. This concluding chapter brings the conflict between light and darkness to its ultimate resolution. The mecha-driven fantasy world that defined this series reaches its climax as the last defenders prepare for what may be an unwinnable battle. Allies converge, ancient powers awaken, and the price of victory becomes terrifyingly clear. Every choice made in the previous chapter matters now. Every alliance tested. Every sacrifice measured. For viewers who have followed this saga through its earlier arc, this OVA serves as the definitive ending to a story about holding back the tide of evil. The adventure that began 20 years before the series' start finally reaches its conclusion, answering whether humanity's seal can truly endure.