Recently, many users have encountered the problem of broken music box mission guide in "Honkai Dome Railway". In fact, this problem is definitely encountered when playing Honkai Dome Railway. The editor will bring it to you this time. Here is a list of solutions to the damaged music box mission in "Collapsed Sky Rail". In fact, the solution is very simple. You can easily solve it by following the editor's few steps.
1. The task trigger location is at the railing on the left side of the bridge in Rivet Town.
2. You need to trigger a dialogue first and get your sister’s bell by fighting monsters (or treasure chests, I can’t remember clearly) in Rivet Town.
3. Come back and deliver the music box to get the music box, mhy knife feeding tradition.
4. After obtaining the music box, go to the right corner of Rivet Town and deliver it to your sister to get the achievement.
If you want to become stronger in the game, then you must carefully read this guide brought to you by the editor. The guide for the Broken Music Box Mission in "Collapse Star Railroad" has been verified many times, so it is very reliable. If you find any loopholes in the guide, please tell the editor in the comment area to make corrections.