After getting this lever, go down through the hole on the right. You can find some Dust on the left.
After obtaining the Dust, turn around and go straight to open the large door ahead. There is Dust to the left of the door.
After opening the door, talk to the old man again to refresh our "Xiao Cui" quest.
After finishing the dialogue, return to the previous save point and save your progress. (Continue in the afternoon. Publish before 6:30 PM.)
