It wasn't hard to see an animosity between the demons and angels.
They weren't really a race that was born to hate each other, but the events for the battle of the keys to the throne had surely wrecked their relationship. Furthermore, both of them had the closed worlds!
The worlds that were closed for the rest of the universe yet open for each other.
The World Bridge is the connection between the angels and demons!
This is a place where demons can live rather normally without any natural catastrophes that are so destructive even pillars themselves must be careful! However, this place is also full of battles with an angel race!
The angel, who was controlling the human body, also had much better situation. It was because he hadn't 'corrupted' the body to control it, but had made a contact with the human race and offered a help.
It was collaboration!
