The story follows two childhood friends as they go back in time to try and prevent the suicide of their other best friend.
| Actor | Role |
|---|---|
 Hou MinghaoGao Silin | Gao Silin |
 Peng YuchangZhang Ziyang | Zhang Ziyang |
 Gai YuexiGuo Sijia | Guo Sijia |
 Ma KeQiao Zhi | Qiao Zhi |
 Beibei GaoGao Mu | Gao Mu |