26 years ago, state troops were ordered to open fire on civilians in the city of Gwangju who were demonstrating as apart of a democratic movement. Thousands of civilians were killed. Now, a shooter from the national team, a gang member, a policeman, CEO from a large company and director of a private security outfit get involved in a plan to convict the person responsible for the massacre.
| Writing | Lee Hae-young | Screenplay |
| Sound | Kim Hong-jip | Original Music Composer |
| Sound | Lee Seung-yeop | Original Music Composer |
| Sound | Lee Jin-hee | Original Music Composer |
| Editing | Hahm Sung-won | Editor |
| Directing | Cho Keun-hyun | Director |
| Costume & Make-Up | Cho Sang-kyung | Costume Design |
| Camera | Lee Hyung-deok | Camera Operator |
| Editing | Son Yeon-ji | Editor |
| Camera | Kim Tae-kyeong | Director of Photography |
| Camera | Park Sung-ju | Camera Operator |
| Production | Choi Yong-bae | Producer |
| Art | Kim Si-yong | Production Design |
| Costume & Make-Up | Cho Hee-ran | Costume Design |
| Production | Mo Sung-jin | Line Producer |
| Writing | Kang Full | Original Story |
| Art | You Cheong | Props |
| Costume & Make-Up | Kim Do-hee | Makeup & Hair |
| Writing | Cho Keun-hyun | Adaptation |
| Art | Kim Min-jeong | Art Direction |
| Costume & Make-Up | Jang Hye-ryeong | Makeup & Hair |
| Editing | Ryu Yeon | Digital Intermediate Producer |
| Editing | Park Jin-young | Digital Intermediate |
| Crew | Oh Se-yeong | Stunts |
| Crew | Seo Jeong-Su | Stunts |
| Crew | Kim Won-jin | Stunts |
| Crew | Hwang Jin-mo | Stunts |
| Lighting | Hong Seung-chul | Lighting Director |
| Sound | On Se-woong | Production Sound Mixer |
| Visual Effects | Kim Nam-sik | VFX Supervisor |
| Sound | Cho Woo-jin | Production Sound Mixer |
| Crew | Jang Jae-wook | Stunts |
| Camera | Ji Sung-yong | Key Grip |
| Costume & Make-Up | Park Song-hee | Makeup Artist |
| Crew | Kim Byung-oh | Martial Arts Choreographer |
