After the fight, the three of them go underground and find that they have been trapped in a "Thunder formation" . They explain that they entered the formation in order to get the "Level 8 medical material" , but that they ran away when they realized that they were trapped in the formation. When they realize that they are trapped inside the formation, they retreat. They realize that the "four little devils" have taken advantage of the situation to attack them. They decide to draw a line against the "little monster" and kill him.