Library

It is cold and humid. This is a quiet cave. Slender stalactites hang down from the high cave ceiling. They are as sharp as a stone sword that has been inserted from the outside. It is dripping water gently. Every drop means that the sharp stone sword grows a little longer. The ticking sound is particularly loud in this silent cave.

This is just a boring fantasy of a high school student in class. Accidentally, I traveled into the game? Seeing others practicing hard and being so cheating on me, oh, I'm really embarrassed...