This anime uses glyphs which appear to be derived
from Hebrew.
This is made extremely clear in episode 4 when they provide a demon
rank chart where the rank names are basically identical to the first
10 letters of the Hebrew alphabet. Many of the symbols bear a
resemblance to the font used on the wikipedia page (maybe with added
"horns", because demons would not use serifs). But several (dalet, he,
waw, yodh) are hard to correlate.
My correlations between the hebrew letters and the symbols from the
screenshots are my personal judgement, and probably contain some
mistakes.
Some symbols might not match any Hebrew letter and represent creativity by the artists.
Some symbols do correspond to a Hebrew letter, but have a
different shape (like Yodh) which is an instance of artistic
license.
Some symbols might match a variant of a Hebrew letter
that is known to scholars, but not represented in the font
used on wikipedia. (just think of the various shapes for the
English letter a; and look at the
wikipedia's image
from the Aleppo Codex which has several glyphs my
untrained eye can't correlate with the modern font).
This anime uses glyphs which appear to be derived
from Hebrew.
This is made extremely clear in episode 4 when they provide a demon
rank chart where the rank names are basically identical to the first
10 letters of the Hebrew alphabet. Many of the symbols bear a
resemblance to the font used on the wikipedia page (maybe with added
"horns", because demons would not use serifs). But several (dalet, he,
waw, yodh) are hard to correlate.
