Eighteen year-old Tae-hoon and Mi-jung have been going out for 100 days. During winter break they decide to take a trip to the beach to celebrate their anniversary. When they are back home after a few days, they have to confront a harsh situation – Mi-jung’s parents don’t allow them to see each other until they become college students. Tae-hoon struggles to keep their love and wanders around Mi-jung but she is eventually changed and avoids him as her parents wish. Winter turns to spring, and Tae-hoon and Mi-jung both turn nineteen.
Unfortunately the movie Eighteen is not yet available on HBO Max.
| Production | Kim Woo-ri | Producer |
| Crew | Lee Hyeong-bin | Cinematography |
| Lighting | Do Yu-seung | Lighting Director |
| Editing | Lee Yeon-jeong | Editor |
| Editing | Jang Kun-jae | Editor |
| Sound | Kim Tae-seong | Music |
| Art | Lee Yubi | Art Direction |
| Costume & Make-Up | Song Kyungeun | Makeup Artist |
| Directing | Kim o ji-suk | Assistant Director |
| Directing | Bang Yujin | Assistant Director |
| Directing | Jang Kun-jae | Director |
| Writing | Jang Kun-jae | Writer |
