Two boys find a beautiful world of magic and wonder when they find a magic marble in an old lighthouse. There they meet Mari and can escape from the growing hardships of their home lives.
Is My Beautiful Girl, Mari on Netflix? Unfortunately the movie My Beautiful Girl, Mari is not yet available on Netflix.
| Directing | Lee Sung-gang | Director |
| Writing | Kang Su-jeong | Writer |
| Writing | Lee Sung-gang | Writer |
| Writing | Seo Mi-ae | Writer |
| Sound | Lee Byung-woo | Original Music Composer |
| Crew | Geun-wook Kwon | Cinematography |
| Writing | Ji-Hoon Hong | Storyboard |
| Sound | Cesar Inserny | Sound Designer |
| Production | Jeong Tae-sung | Producer |
| Production | Seong-weon Jo | Producer |
| Production | Jay Choi | Executive Producer |
| Editing | Park Gok-ji | Editor |
| Production | Tcha Sung-jai | Executive Producer |
| Production | Cho Seong-won | Executive Producer |
| Production | Carl Macek | Producer |
| Production | John Ledford | Executive Producer |
