@FukaiGamus Thank you for reporting.
I detected a font file issue.
I have uploaded the correct font file, so please redownload the file.
If the problem persists, please let me know, including details about your environment. For example, OS and language settings.
@MireskaDW I’m honestly surprised this reached someone outside Japan!
I’ve just added English support in v0.1.1 (I don’t speak Spanish, sorry!).
If you'd like to check it out, the download link is the same as before.