Mining a Minor Metal is a required quest that occurs during the Field Study (Day 1) in Chapter 6: Progressive Chaos of Trails of Cold Steel.


The quest is given to you automatically by Irina Reinford via the Field Study envelope. The player can start the quest by speaking with Researcher Ratto at the Roer Institute of Technology.

This quest has no expiration as it is marked as required. All other optional quests during the free day will expire upon its completion.


  1. Talk to Researcher Ratto in Roer Institute of Technology.
  2. Proceed to Sachsen Iron Mine.
  3. Obtain the Mine Shaft Key.
  4. Defeat the Gold Fungus.
  5. Return to Researcher Ratto.


Stage Entry
Initial "I'm looking for a particularly rare sort of metal for my research, but I'm afraid I can't get it myself. If you're willing to help, I'll be in the western part of the upper level of the Roer Institute of Technology." --Ratto
1 After speaking with Ratto:
  • Ratto needed linium, a minor metal we can get from the Sachsen Iron Mine.
2 After arriving at Sachsen Iron Mine:
  • Apparently, the mine shaft where we could obtain linium has been sealed off due to the appearance of a dangerous monster. We'll need to be doubly careful now.
3 After obtaining the Mine Shaft Key:
  • We were given the key to the mine shaft by the chief miner. Let's go exploring.
4 After defeating the Gold Fungus:
  • They weren't kidding about that monster. We beat him, though, and managed to get our hands on some linium, which it seems to have swallowed. I hope Ratto's happy...
5 After returning to Ratto:
  • Linium delivered!