Se-ha who is a physically handicapped and Dong-gu who is a mentally handicapped are not their own brothers. But while living 20 years together, the two became indispensable to each other. One day, the mother of Dong-gu suddenly visits him and acts as his guardian.
You can now watch Inseparable Bros online on the following streaming providers in the United States.
| Directing | Yook Sang-hyo | Director |
| Writing | Yook Sang-hyo | Writer |
| Production | Moon Yong-chan | Producer |
| Production | Shim Jae-myung | Executive Producer |
| Production | Ha Jung-wan | Executive Producer |
| Camera | Sung Seung-taek | Director of Photography |
| Editing | Kim Sang-bum | Editor |
| Art | Kim Yeong-hui | Production Design |
| Sound | Kim Suk-won | Sound Supervisor |
| Sound | Lee Ji-soo | Original Music Composer |
| Costume & Make-Up | Jang Joo-hee | Costume Design |
| Costume & Make-Up | Jin Min-kyoung | Makeup & Hair |
| Production | Kwon Ji-won | Co-Producer |
| Editing | Kim Il-kwang | Digital Intermediate |
| Production | Lee Eun | Executive Producer |
| Camera | Kim Hong-mok | Camera Operator |