On March 1st, 1844, in large piece of land known as The Open West, Operation Carkune occurs. That was the day when Grant Place, Lord of Harbrook (Lord is like a dictator in this world), a Northern country, ordered the execution of all religious groups like Waiism (Micheal’s followers), Haruhi (Ronanns) and Deharra (Deharrans). As one incident led to another, an all-out war broke out in, what many called it, “The Third Holy War”. 12 years later, the war is still going on. A man named Ellis Havard is a victim of Harbrook’s experiments and he was born a beast with great strength. He and his friend, Ryan Wallar, are ordered by their country to join the war into the Open West to take invade Harbrook, kill Place, and end the Third Holy War.