I'm sorry to tell you, but your history books are incorrect. They are all missing a very important chapter - or perhaps historians didn't wish to upset anyone.
Let's back if you have a moment..
It was once said that both demons and humans lived at peace in the world. However, man began to make faith that demons were evil killing and chasing them all away. The demons did not understand what made this change within the humans, but they weren't about to leave their homes just because they wanted to. So a war broke out between the two species. Humans with their machine guns, explosives, knifes, tanks and many other types of weapons they could use in order to harm the evil creatures. Demons striked, bitten, clawed, and used their hands and skills in every way they knew in order to fight back. The fight continued for years until a murder of a demon child was found between the blood, this action enraged them even more making their quest to kill these vermin a lot faster; however, man's technology out witted the demons. They knew if this war was to go on they would lose a lot more of their kind then saving them.
The humans banned the demons from the human cities or anything that was human related. The demons had no choice, but to agree with them living in the woods, mountains, and forest they can find. Though man did not stop there for they too wanted to visit places as such, but the agreement that was made between them years ago denied them the right to go. This angered them and so from then on they striked, boycotted, and fought back to the government. Through elections man choose a person who promised that he would be able to take care of the demon problem, that he would protect their human rights, and that he would make the nightmare go away. Everyone agree and voted for him, as they did no one realized the huge change it was about to make to not only the human world, but towards the demons as well.
When he won he assigned a new law that made it all clear that no demon should be able to exist on this planet. They were the evil that the world needed to get rid of and he was the man that was going to make it happen. Soon after the news was booming of the evil creatures being killed through out the east and south coast. People seemed happy and glad about the news, everything was going to be alright. A time where only humans exist.
Alice: Chapter one is done!
Ritsuka: This is all useless information!
Alice: Well if I didn't start with this then I think the audience would have been very confused.
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