WN/Angel

Every five hundred years, the gates of heaven will open, allowing the Angels to commence their invasion. Based on fundamentals, they don’t attack human settlements all that often, but overly developed towns end up destroyed.

Research indicates that the Angels despise civilization as yang to their ying if you will. The only ones that have managed to escape from their onslaught is Dwargon. Their domain only has two entrances. Large scale invasions don’t work either because dragons inhabit the mountain ranges. Therefore, they’ve managed to defend themselves somehow. That’s more or less the reason why civilization is stagnate to a certain level. The only exception is the Ingrasia kingdom. It’s also the reason why the council is there in the first place. It’s in order to perform research and try to mitigate the damage of each invasion.

Every five hundred years, the Imperial Capital is redesigned based on how much damage is caused after an invasion. It’s basically trial and error. This is something that each country has unanimously agreed on and something that all residents understand completely. It’s also because their research hasn’t been over the top that the destruction and devastation has been kept to a minimal.

Each nation gives out support and carries out their research in total secret. Any discoveries are generally concealed and only the kings of each country can utilize the latest in technological development. If they were to spread the results to the people, the angels would certainly unleash their full wrath upon them. This system was carefully determined and agreed upon. Only discoveries that are determined to not cause incident are released to the masses.

The purpose of the angels are to eliminate monsters as well.

Abilities
Angels are individually close to a B+ rank, so they always come in armies of roughly 1,000,000 strong or more. In addition, there are leaders of captain/commander classes that are stronger and organize the invasion. There are general level classes as well, but the combat capabilities of these individuals are unknown.

They’re also under the Holy attribute, so any real attacks or intervention from the church will probably be useless. However, they don’t seem to be allies of humanity either.