In fact, trying to take action on this Black Land poses even more problems than Reiger imagined.
Not only are those eerie, terrifying Abyssal creatures a dreadful threat, but the living environment here is also a huge danger.
Not to mention anything else, just the oxygen necessary for human survival is so scarce here that one would wonder if they've sunk into an invisible sea.
Besides, there are the threats you can't see, like the deadly virus active within the Abyssal Aura, acid rain with a corrosiveness stronger than sulfuric acid, toxic dust mixed in the air, and so on, all threatening human survival.
There's no way around it; the Abyss is a world completely opposite to the Source.
Life that proliferates in the Source can't possibly live if it comes to the Abyss.
Abyssal creatures do not need oxygen; some don't even need food or water. Their survival requirements are entirely different from those of living races, utterly incompatible with the ecological form of "life."
