Lumina Dantalion IV

Just as how everyone outside were wondering what was going on inside the vine filled battlefield, the three summoners of the underground arena were just as perplexed. Everywhere they looked, there was nothing but vines. Green and fresh ones mixed by a couple of brown and seemingly withered vines. Adding to this are the flowers which served as the light bulbs for the place, providing illumination for everyone.

Had this happened on a normal occasion, the three would've appreciated the place. In fact, it was so aesthetic that one would even think that it was something made by the heavens itself. Unfortunately, they were there for an entirely different reason. And so they fixed their gaze on the girl who made this all possible. Asking Lumina:

"What is this place?"