Between humans and demons there is a prolonged war. During this time the human Hero infiltrates the Demon Queen"s castle and challenges her. However, before the battle the queen wants the Hero to hear her arguments. According to her research, the war has allowed people to unite against a common enemy. After wealthy countries shared resources with the poor, mortality from famine and disease sharply decreased. As a result, since the start of the war the population has not declined but rather increased. Moreover, the economy became closely tied to military actions, and the end of the war will plunge society into chaos. A similar situation is observed among demons as well. Therefore, even if one side wins, a new war will soon begin. However, the Queen has a plan to make peace possible. For this she offers the Hero to take her side, taking herself as payment. Despite the fact that the Hero"s hands will not remain untainted in this case, he agrees to the Queen"s proposal.
