Something that I've realized in uploading the N2U album covers is that I mention Maikai, but really don't go into much detail about what sort of place is it. I figured it would help ground the album covers and characters more if I wrote up some informational posts about Maikai.
So, to start, what and where is Maikai?
Maikai ("every world") exist in what's known as a Staircase Universe, with Maikai being the central axis around which all other dimensions revolve. It's an endless plane of existence, meaning the dimensions revolving around it are endless in amount. Satellites float in orbit around dimensions and Maikai, giving way to day and night cycles, along with seasons and weather.
The Veil is a natural "curtain" of energy that separates Maikai from all other dimensions. Considering that Maikai is endless, The Veil has to stretch rather far. This causes weak points in The Veil, allowing travel between Maikai and dimensions. This can be a good or bad thing, but judging by the history books of Maikai and the list of entries that refer to "Infestations," these weak points pose more of a problem than anything.
It's believed that the higher you go on the Staircase, the more "ethereal" the creatures are and the lower you go on the Staircase, the more "solid" the creatures are, and one could say there's a sense of Heaven and Hell in this universe (and true, there is a dimension called Hell! But there doesn't seem to be an exact Heaven equivalent, simply "Higher Planes.")
I think this is all for now as far as the macrocosm. I think the next post will be the origins of the current races of Maikai.
Asks are open if you want to know anything more!