After adding Ryuto to their group, Gingka and friends move on with their journey. They arrive at the mouth of Mist Mountain. As the name suggests, there is thick dense mist everywhere which slowly engulfs them. Gingka and group start to panic but Kyoya launches his Bey and creates tornado which clears the mist and reveals a huge entrance. As they proceed through the entrance, Johannes and Aguma follows the group. Gingka and his friends arrive at a fork in the path and do not know which way to go. Ryuto notices the statues eyes seem to point the way and tests the corridor for traps with his Bey. It is safe and he takes the path on the right. Gingka and Co. follow him. Ryuto arrives at the next junction and quickly takes the path on the left, following the statues eyes they arrive at the third junction which has three doorways but Ryuto realizes something is not right about the path the eyes are pointing to this time. Benkei does not take heed, he decides to take the path the eyes are pointing to. Ryuto tries to stop him and warns him that it could be a trap. As Benkei tries to enter through the doorway, a gate begins to fall but he manages to stop the gate long enough to free himself from danger. The gate closes all the way and then reopens. Kyoya observes that when the wooden gate had sealed the path, the statue's eyes had moved into another direction and mentions this to group. Ryuto and Kyoya both agree that the path on the left is the correct way.
Throughout the maze in Mist Mountain, Johannes, Aguma, Bao, and their followers continue to follow at a safe distance from Gingka and friends. Ryuto suddenly stops but Gingka is unable to stop in time and slides down a slope. Gingka and co realize they have reached an ancient Bey Stadium. They see an enormous stone gate and try to figure out how to open it. Kyoya realizes they are being followed and launches his Bey causing an explosion in the corridor that they previously had entered from. Johannes and Aguma come out, coughing. Gingka and co are shocked to see them here. Johannes was also looking for Legendary Bladers. Kyoya demands a rematch between him and Aguma. He has not forgotten his loss during the match in China. Anger ignites between Kyoya and Aguma and a heated battle soon commences. The stone door opens as a result. Ryuto runs towards the door but Johannes launches his Bey to stop him. Nile takes charge and orders Demure and Benkei to take a defensive position to block Johannes, Bao, and their followers. He then tells Gingka, Madoka, Yuki, and Ryuto to go ahead. Ryuto runs ahead; Gingka is reluctant to leave them but ultimately follows Ryuto, leaving them behind.
The battle between Kyoya and Aguma intensifies as they both use special moves against one another; Aguma provokes Kyoya calling him Gingka's follower in disgust. At first, Nile, Benkei, and Demure are losing their battle, but through teamwork of special moves and renewed sense of determination, they manage to defeat Johannes, Bao, and his followers. They rush to join in Kyoya's battle but are stopped by Kyoya. He is very determined to defeat Aguma by himself and threatens them not to interfere. Kyoya returns to his battle and defeats Aguma in the end. When the battle has ended, the stone door starts to close. Kyoya, Nile, Benkei, and Demure manage to get through the doorway before it closes while Johannes, Aguma, Bao and their followers are trapped on the other side. As they make their way to catch up to Gingka, Kyoya is brooding over what Aguma said about being Gingka's follower.
Kyoya has a rematch with Aguma and wins the battle.