The poison vine mountain defense line was the newly built defense line of the weaving Fire Tribe. Before this, the poison vine mountain was only a medicinal herb production area of the weaving Fire Tribe and had no intention of being used for military purposes. This was because the weaving Fire Tribe had always believed that they didn't need to guard against the chaotic battlefield. No one would dare to attack them there, and they only needed to guard against the special Arts world and the sword World.
But now they had no choice but to build a line of defense here at poison ivy Mountain, because the people from the hundred treasures world were coming to attack them!