The human nobles regard the demons as their luxuries and playthings. In order to conceal their own sins, divert the dissatisfaction of the public within the human race from the palace, and obtain more demons to satisfy their selfish desires, they vigorously promoted the fact that demons suck blood, which is contrary to human morality, and exaggerated the threat their existence posed to the human race. Being hated and constantly provoked by the human race, the Demon King launched a war against the human race. This war lasted for decades. In the early days of the war, due to the corruption of the human race's ruling class, the human race was once in danger of being exterminated. At this critical moment, civil resistance forces represented by TUS gradually emerged. Under the leadership of TUS, the people fought back against the demonic attack, and the human nobles also used the power of the people led by TUS to protect their rule. TUS was called "the hope of light" by the people, and the silver sword he used became the symbol of "light". However, due to the fighting between various forces within the human race, the demon king finally captured the capital. The story of LASTWAR starts from the moment when the Demon King kills TUS...