The sewer system of Orario differs from that of typical cities, showing no signs of filth or stench.
Here, not only is it constructed in a very orderly manner, but the sewage flowing through the channels isn't as dirty as Reiger imagined. Apart from the slightly murky air, it surprisingly lacks any foul odor.
This is because Orario's underground sewers are equipped with many magistone devices.
In the narrow branch channels, crystal columns emitting a blue-purple glow, resembling iron railings, are installed. Whenever water flows through, these crystal columns purify it, turning the passing water into clean, clear water, making the flow within the channels transparent and pure, unthinkable for discharged sewage.
At intervals, the walls of the sewer have magistone lamps that illuminate the surroundings.
