This was once a world where angels, demons and humans coexisted. But among the demons, the seven most extreme representatives provoked a huge war involving the three realms because of their ambitions. Angels and humans paid a heavy price and lives, and finally, in the disaster of blood and crying, killed the seven demons known as the "Seven Deadly Sins", and peace was restored in the world.
But because of this, the three realms were completely separated, and in the end only the "Seven Virtues" angels who were sent by gods to save the world from decay were left in the world.
Hope, generosity, loyalty, tolerance, temperance, justice and perseverance, they gathered in the center of the city and opened a small office to help the lost people.
But, is the truth really what the rumors say?
Concept: Are angels and demons the standard for distinguishing?