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.
| Writing | Kang Su-jeong | Writer |
| Sound | Lee Byung-woo | Original Music Composer |
| Crew | Geun-wook Kwon | Cinematography |
| Writing | Ji-Hoon Hong | Storyboard |
| Directing | Lee Sung-gang | Director |
| Writing | Seo Mi-ae | Writer |
| Sound | Cesar Inserny | Sound Designer |
| Writing | Lee Sung-gang | Writer |
| Production | Seong-weon Jo | Producer |
| Editing | Park Gok-ji | Editor |
| Production | Jeong Tae-sung | Producer |
| Production | Jay Choi | Executive Producer |
| Production | Tcha Sung-jai | Executive Producer |
| Production | Cho Seong-won | Executive Producer |
| Production | Carl Macek | Producer |
| Production | John Ledford | Executive Producer |
