The master of a Judo dojo turns his daughter into a master of the martial art as she is growing up. But now that she has reached marrying age, he finds it difficult to find her a husband that can accept her tomboy ways.
Unfortunately the movie My Sister is a Tomboy is not yet available on HBO Max.
| Sound | Lee In-kwon | Original Music Composer |
| Writing | Il-ro Gwak | Screenplay |
| Writing | Park Seong-ho | Screenplay |
| Writing | Yu Il-su | Screenplay |
| Production | Chang Il | Producer |
| Production | No Seung-dong | Producer |
| Lighting | Sin-geun Lee | Lighting Director |
| Editing | Han Hyeong-mo | Editor |
| Sound | Lee Kyeong-sun | Recording Supervision |
| Sound | Lee Sang-man | Sound |
| Directing | Lee Chang-yeol | Assistant Director |
| Directing | Han Hyeong-mo | Director |
| Production | Lee Bong-seon | Producer |
| Camera | Seong-hwi Lee | Director of Photography |
| Art | No In-taek | Art Direction |
