At another place…
Joey and Min Soo are ambushing the demons' quietly, clearing the field from demons' infestation. The man tells Min Soo that the field is used by the Stonemines to farm and plant crops, but with the sun disappearing and the darkness continues to engulf the city, the crops can't live on.
Joey asks Min Soo's opinion concerning their food supplies, it keeps getting thinner and the villagers grow weary and weak due to declining supply. Min Soo thinks of a way to replace their food stocks, but the man is out of ideas. He doesn't know much about Sanctus Luminera, he's just a newcomer.
However, Min Soo asks Joe anyway; if there's anything that has the same component as the sun it might work. Joey thinks of a stone, there's a mining site in their old village, they just happened to relocate in the middle of the Bristlewood because it can hide them from the demons'.