Soo-hyun comes across magical pills that allow him to go back and forth in time. 30 years to the past, young Soo-hyun meets future Soo-hyun and learns that his girlfriend will soon die because of him. In order to save her, the two Soo-hyuns try to change the past together, but a completely new and unexpected past is formed that leads to a new future.
You can now watch Will You Be There online on the following streaming providers in the United States.
| Writing | Guillaume Musso | Novel |
| Directing | Hong Ji-young | Director |
| Writing | Hong Ji-young | Screenplay |
| Camera | Park Hong-yeol | Director of Photography |
| Editing | Park Kyoung-suk | Editor |
| Production | Park Sun-hye | Producer |
| Costume & Make-Up | Jang Yoon-jung | Makeup & Hair |
| Art | Jang Chun-sup | Production Design |
| Production | Min Jin-soo | Executive Producer |
| Directing | Yoon Young-woo | Assistant Director |
| Costume & Make-Up | Chae Kyung-hwa | Costume Design |
| Production | Ryu Jae-jun | Line Producer |
| Camera | Jung Hoon | Key Grip |
| Sound | Lee Soon-sung | Production Sound Mixer |
| Lighting | Kang Dae-hui | Lighting Director |
| Art | Jeon Sung-ho | Set Decoration |
| Crew | Han Dae-ryong | Stunts |
| Art | Jeon Jin-won | Art Direction |
| Writing | Park Song-i | Storyboard |
