When there is light, surely there is also darkness as light cannot be considered light if it cannot cast away darkness
In this realm where humans live a dangerous life filled with nothing but darkness due to the overpowering strength of the magic beasts, one city stood strong and proudly. This city is the light of the humans in this realm as it was the only place that has the slightest chance of winning against the might of the magic beasts
However, such a city viewed as the light of the world also has its own darkness. Darkness so deep that no one would think that it actually exists
In an underground facility, something is happening that not many people knew about. Even those that have some information might only know that something bad and cruel is happening in this place
This underground facility is an important facility of the city but they don't have as many people as other important facilities
