I can’t find error from your code but I refer below for generating korean fonts.
And here is the demo.
Here is the korean font I generated.
- mulmaru : GitHub - mushsooni/mulmaru: 게임에 잘 어울리는 한글 픽셀 폰트 | A Korean pixel font perfect for games · GitHub
- neodgm : GitHub - neodgm/neodgm: A modern TrueType font based on the timeless Korean bitmap font. · GitHub
korean_font.zip (1.1 MB)