Climb up the stairs on the nearby high platform to obtain a Dust item.
After obtaining it, go across and climb the ladder to rescue the old man.
Once you're up, there are two items to collect. Interact with all four levers.
After interacting with the last lever, climb down the ladder.
After coming down, open the cage we just lowered; there are several items to collect.
After rescuing the old man, we will automatically give him the "Rootless Immortal Dew" we obtained earlier. The quest will update to the next stage.
The item in the last cage is the story item "Mo Jizi's Bloodstained Sword." This item is required for the "Hero's Lament" quest.
