Köga, Yuna, and Söma advance through the first path while Shun stays behind to deal with the enemy reinforcements. However, the Class-2 Pallasite Mystic Stone Surtr blocks their path enveloped in a defensive barrier that seems impenetrable. The Bronze Saints are about to lose the battle until Shun catches up with them and realizes the secret behind the enemy's trick. Combining their powers, Köga breaks Surtr's Mystic Stone before Shun is forced to kill the Pallasite with his Nebula Storm technique.