Bab 778: 1-on-1 Match (2 in 1)

At the exact moment the black crystal exploded, a huge black wall appeared in front of them, seemingly forming a barrier between them and the heavens and earth. All the energy in this space was absorbed by this giant black wall and integrated into its own power, causing this 'giant wall' to grow to hundreds of meters in height instantly. It became larger by so much that they couldn't see where this wall ended, and it appeared to be expanding still.

This huge barrier isolated all danger outside of it. Through the black energy barrier, you could see numerous faint ripples appearing and spreading across the surface of the barrier, but it remained intact nonetheless.