Mantis, een topmoordenaar, keert na een pauze terug naar de huurmoordenaarsindustrie. Hij ontmoet zijn vriend Jae-yi en een gepensioneerde legendarische moordenaar, Dok-go, die nu de organisatie leidt.
| Crew | 변성현 | Creator |
| Directing | 이태성 | Director |
| Writing | 이태성 | Writer |
| Writing | 변성현 | Writer |
| Writing | 이진성 | Writer |
| Writing | 변성현 | Characters |
| Sound | 달파란 | Original Music Composer |
| Costume & Make-Up | 조상경 | Costume Design |
| Camera | 강민우 | Director of Photography |
| Crew | 류성철 | Martial Arts Choreographer |
| Production | Yi Jin-hee | Producer |
| Production | Choi Bo-ram | Producer |
| Lighting | 이승호 | Lighting Director |
| Art | Lee Jong-geon | Production Design |
| Art | Kwak Hae-eun | Production Design |
| Sound | Park Jong-woo | Production Sound Mixer |
| Costume & Make-Up | Kim Hyun-jung | Makeup & Hair |
| Crew | 서지오 | Martial Arts Choreographer |
| Camera | Park Ji-seul | Grip |
| Art | Oh Jin-seok | Props |
| Art | Nam Seong-ju | Set Decoration |
| Editing | 김상범 | Editor |
| Editing | 김호빈 | Editor |
| Editing | 이경종 | Digital Intermediate |
| Visual Effects | 이정복 | Visual Effects |
| Production | 서수석 | Line Producer |
| Visual Effects | 정도안 | Special Effects Supervisor |
| Visual Effects | 윤형태 | Special Effects Supervisor |
| Costume & Make-Up | 황효균 | Special Effects Makeup Artist |
| Costume & Make-Up | 곽태용 | Special Effects Makeup Artist |
| Sound | 김석원 | Sound Supervisor |
| Directing | Lee Beom-seok | Assistant Director |
| Directing | 우종현 | Assistant Director |
| Costume & Make-Up | 아이락 김 | Tattoo Designer |
