After a surprise visit from her friend Geum-sun, Eun-sim is headed to her hometown with Geum-sun. There, she catches up with Tae-ho who had feelings for her when they were teenagers. Her long-lost memories come to life one by one.
Unfortunately the movie Picnic is not yet available on HBO Max.
| Sound | Kim Chang-sub | Sound Supervisor |
| Costume & Make-Up | Park Se-hee | Costume Design |
| Production | Kim Young-jin | Executive Producer |
| Visual Effects | Kim Byeong-rae | VFX Supervisor |
| Camera | Kwak Kyung-ho | Director of Photography |
| Editing | Park Jin-ho | Digital Intermediate |
| Sound | Jeong Hyun-soo | Original Music Composer |
| Lighting | Jang Il-ji | Lighting Director |
| Sound | Hong Tack-hyun | Production Sound Mixer |
| Production | Jung Seung-pil | Co-Executive Producer |
| Costume & Make-Up | Yoon Sung-won | Makeup & Hair |
| Writing | Jo Hyun-mi | Writer |
| Editing | Kim Hyeon-beom | Editor |
| Production | Kim-Jho Kwang-soo | Co-Executive Producer |
| Art | Im Seong-mi | Production Design |
| Crew | Lim Wang-sub | Martial Arts Choreographer |
| Writing | Kim Yong-gyun | Adaptation |
| Directing | Kim Yong-gyun | Director |
| Production | Lee Sang-hyun | Producer |
