The term 'shadow realm' isn't exactly a novelty.
You could give a multiversal traveler 2,000 years, and they'd never be able to name all of the different planets that use that term, much less the other realities.
Tehom and variants of hell are both called by that name, but neither one quite fits that description to the maximum.
Audrina has her own shadowy realm inside of her soul that she has been nurturing for thousands of years.
It's sort of like a reverse world in that its sole inhabitants are echoes, or more accurately, shadows of the real world. However, it solely consists of people acting out their greatest secrets and shame.
But Audrina insists on calling that place the Aurora Dimension because it's prettier and makes her sound less like a thirteen year old edgelord.
