Although, every sect moves forward in a single direction when exploring outside the wall, and each sect chooses a different direction.
However, every sect also leaves some people behind to guard the base camp during their exploration outside the wall.
The base camp requires some people to guard it, after all, not every sect is the Taichu Sect, which possesses the Chaos Treasure Lotus that allows them to replenish themselves anytime and anywhere.
Sects like the others have to return to the base camp for resupply and then go back to the point they reached before and continue forward.
So when Ye Tianfan returned to the base camp earlier, he saw many people bustling around, since they needed to receive supplies from inside the wall, categorize them, and move them to designated places.
Although the supplies were not many, they were quite abundant, making categorizing them rather troublesome.
