Escape?
For Kalina, it was effortless.
If she wanted to run away, she could do so at any time. The reason she stayed imprisoned in the dungeon, allowing the Snow Night Empire's experimenters to "play" with her, was mainly for the smooth progress of her plan.
Therefore, when Kalina released the blazing flame attack barrier, it wasn't truly for the purpose of escaping but rather to utilize the sea of fire as cover, preventing the outside world from observing the interior of the dungeon and the scenes within the barrier.
Taking advantage of this opportunity, Kalina could secretly do some things she wanted to do.
By the way,
Pretending like this was actually quite difficult. How could she ensure her performance looked genuine without directly shattering the barrier?
It was a constant source of annoyance for Kalina. Sometimes, she even had to personally reinforce the barrier...
