Mi Young and Hae Choon both watch as the huge beast lash out its anger on the solid walls. It made dent marks on the wall just like earlier. However, the enchanted walls went back to their original form once again.
"Whoever made this room must be a strong spellcaster." Hae Choon whispers as they try to hide beneath the pile of feathers.
"How can you say so?" The black haired girl whispers back. She rolled her eyes at their entire surroundings and realized that even though the whole room was shaking, the ceilings and the walls remained intact.
"Casting a spell this huge to keep a monster requires tons of mana power. Not to add that the spell used inside this room is a grade A spell." Hae Choon explains.
"Grade A? There are grades for each spell?"