Yana hates Filipino men. For her the perfect man is Moon Shiwoo, a dashing Korean actor from the K-dramas that she always watches. Yana's dream comes true when she flies to Korea to join fans from all over the globe to meet Moon Shiwoo in an exclusive fan event. During the event, the fans compete for the attention of the star, but Yana finds herself falling for Jae, the actor's manager, instead.
Unfortunately the movie The Ultimate Oppa is not yet available on HBO Max.
| Writing | BJ Song | Screenplay |
| Directing | Hwang In-roe | Director |
| Sound | BJ Song | Sound Designer |
| Sound | Lee Young-soo | Sound Designer |
| Sound | BJ Song | Music Director |
| Sound | Ryu Young-min | Music Director |
| Editing | Lee Eun-bi | Editor |
| Camera | Ha Jae-young | Director of Photography |
| Camera | Lee Tae-sul | Director of Photography |
| Production | Jung Min-jee | Associate Producer |
| Production | Glenn Mark Salamat | Associate Producer |
| Production | Lee Bum-yun | Supervising Producer |
| Production | Stacey Bascon | Supervising Producer |
| Production | June Torrejon-Rufino | Supervising Producer |
| Crew | Valerie S. Del Rosario | Creative Consultant |
| Writing | Hong Yoon-hee | Screenplay |
| Writing | Hwang In-roe | Screenplay |
| Production | Veronique del Rosario-Corpus | Producer |
| Production | Vincent del Rosario III | Producer |
| Production | Ronald Monteverde | Executive Producer |
| Production | Vic del Rosario Jr. | Executive Producer |
| Production | BJ Song | Executive Producer |
| Production | Erik Matti | Executive Producer |
| Production | Chang Jun-won | Producer |
