The story of two brothers, the younger one of whom has a rare disease which causes his body to age rapidly while his mind is still in a pre-teen state.
| Directing | Kim Yong-hwa | Director |
| Writing | Kim Yong-hwa | Writer |
| Art | Park Elhen | Art Direction |
| Camera | Park Hyeon-cheol | Director of Photography |
| Production | Park Ji-sung | Production Supervisor |