Mateo a former mercenary from another world. He got summoned into another world and his mission was to train the troops of Andrepan. Then the King of Andrepan betrays him. Mateo kills the king, He takes over the throne and made Andrepan one of the most Advance Nation in the Continent of Lumeria. But Nation and Kingdom from the East suddenly formed a coalition. 4 years since the war broke out, Andrepan still holds and the Coalition suffered tons of casualty in the process. How will Mateo End the war