Once the Tang Family group froze, the vines started to move.
The vines had only been surrounding them without actually approaching them, so they thought that the vines wouldn't do anything to them.
But then all of a sudden, the vines started to move.
The vines that had been around the Tang Family group closed in on them as if they were about to grab them. They just slowly closed in around the Tang Family instead of going in to grab them like they did before.
It was as if whatever was controlling the vines could already see its victory, so it didn't rush to grab the Tang Family group.
There were a few members of the Tang Family group that were still able to move in the end since the moth scales hadn't spread all over the place. It had only spread in a certain area centered around the Tang Family group.
That meant that those who were still at the edge could move.