Summer 2020 brought us the anime “Maou Gakuin no Futekigousha” with another funky on-screen alphabet. By episode 6 I’d seen enough samples to confirm that it is an actual Roman-style alphabet and the on-screen text usually means something in English or Japanese.
There’s a decimal number system and two scripts, one curly “written” script and a blocky “print” script for signs. There seems to be no upper/lower case.
Including the random floating characters in the opening animation, enough glyphs appeared on-screen to constitute a full alphabet. I was able to identify all but 2 of the glyphs (?2 and ?3), which by elimination can only be Q and X. I’ve not looked at all the magic circles, the ones I checked unfortunately seem mostly gibberish. Same for the floating characters in the opening animation. If we assume the magic circles are generated by random keystrokes on a standard Japanese keyboard then based on the sequences BVC?2WET and AZ?3CV, I think ?3 is probably X so ?2 would be Q.
The magic circles appear mostly random text like this:
Episode 9 has some more text and revealed ‘J’:
This blackboard provides us the ‘J’ in “jidai”, I didn’t bother to transcribe the rest since the other unknowns don’t appear (Q and X would not turn up in Romanized Hiragana) and the fuzziness strains the eyes.