The west finally won the battle and took the Wind Valley. The east generals were captured as hostages, and the east became a vassal for the west. However, a lethal virus of the western empire spread and forced the leaders of the empire to find a way to survive no matter what. 4 year later, the scientists of the west discovered a way to absorb the sun's energy and started using it to stop the virus. Meanwhile, the stranger traveled to the east and showed the emperor the vision. But unfortunately, the emperor didn't believe him, and imprisoned him for being a heretic. After 4 painful months, after being imprisoned and tortured, the north bought him from the warden and transferred him to the north for his left eye. When they reached the north, they were ambushed by northern mercenaries lead by a girl and a exiled the western knight. She is the oracle of the Northern empire. She saw the same vision and tried to warn the king, but they did not believe her. She planed to recuse the scholar and join his journey and head south to the Land of the Beasts. When they traveled through the eastern empire, their ship was hunted by the eastern patrol. They were forced to take refuge in a village. There, they found an engineer in a tavern, and they made an agreement. After sneaking in the fortress to steal the energy core, they discovered the secret deal of an eastern general, who was with the western empire. The general planned to sabotage the main eastern force which fought the final battle in the Wild Valley.