De 15e eeuw. Tijdens de Joseon-dynastie is de meerderheid van de Koreaanse bevolking analfabeet. De mensen die wel kunnen lezen en schrijven maken gebruik van het Chinese schrift, wat moeilijk te beheersen is. Koning Sejong de Grote wil een simpel en origineel schrijfsysteem ontwerpen waar zelfs boeren gebruik van kunnen maken. Omdat zijn adviseurs niet weten waar ze moeten beginnen, doet Sejong beroep op laag geboren, boeddhistische monniken met unieke inzichten.
Nee, helaas is 나랏말싸미 nog niet beschikbaar op Netflix in Nederland.
| Crew | Shin Young-hoon | Martial Arts Choreographer |
| Camera | No Ju-han | Still Photographer |
| Art | Yoon Sung-hye | Art Direction |
| Art | Choi Ji-hye | Art Direction |
| Art | Jang Hee-sun | Art Designer |
| Lighting | Hong Seung-chul | Lighting Director |
| Sound | Lim Hyung-geun | Production Sound Mixer |
| Sound | Yang Hye-jin | Sound Editor |
| Camera | Jeon Young-wook | Still Photographer |
| Camera | Ji Sung-yong | Key Grip |
| Directing | 조철현 | Director |
| Writing | Lee Song-won | Writer |
| Writing | Geum Jung-yeon | Writer |
| Editing | 김상범 | Editor |
| Sound | 달파란 | Original Music Composer |
| Camera | Kim Tae-kyeong | Director of Photography |
| Art | 류성희 | Production Design |
| Costume & Make-Up | 김서영 | Makeup & Hair |
| Costume & Make-Up | Shim Hyun-seob | Costume Design |
| Sound | 최태영 | Sound Supervisor |
| Production | Seong Chang-yeon | Producer |
| Production | O Seung-hyeon | Executive Producer |
| Writing | 조철현 | Writer |
| Costume & Make-Up | Lee Ji-yeon | Costume Design |
| Production | Kim Ji-hoon | Line Producer |
| Costume & Make-Up | Seo Eun-kyung | Costume Design |
| Camera | Lim Won-geun | Camera Operator |
| Directing | Kim Jun-su | Assistant Director |
| Editing | 박진영 | Digital Intermediate |
| Art | 윤혜정 | Props |
