This page explains how to start and complete the [Xenoblade Chronicles 2] side quest.
How to Start the Quest
This quest becomes available after you leave the Great Plateau. If the quest hasn't started after you leave the Great Plateau, you can warp, load a save file, die, or leave a Shrine to make it start.
How to Complete the Quest
You are given three clues, and need to stand in the correct locations to make the red shooting stars appear. They only appear at night. You may need to stand there for several moments before the shooting star appears.
After each red light appears, use the map to pin it, then go to it and open the chest you find there. You will get a piece of Salvager armor.