How to complete the hidden mission briefcase of the Collapsed Star Dome Railway? The hidden mission briefcase of "Honkai Star Railroad" is a task process in the game. Players need to find the briefcase to complete the task, but there may be some friends who are not clear about it, so the editor has brought "Hengkai Star Railroad" An introduction to how to complete the hidden mission briefcase, if you are interested, don’t miss it!
>>"Collapse Star Dome Railway" Strategy Guide<<
1. First teleport to the map administrative area.
2. Go down the stairs.
3. After going down, click to turn left and go to the end. Then when you reach the bridge, you can see the briefcase.
4. Talk to him and choose the second option to get the reward.