Fifteen years ago, at night, a girl in thin clothing stood in the silent classroom. She struggled to move the desks to the sides, clearing a large space in the center. After doing all this, she quietly sat on the windowsill, bathed in the cool autumn breeze. After hesitating for a very long time, she slowly returned to the classroom, took out the marker she carried with her, and, while crying, wrote down densely packed curses and a series of names on the walls and blackboard. Not until the walls were completely covered did she take a craft knife and forcefully slice open a wound on her wrist.
Pain made her tremble, but without any pause, she slowly began to walk at a strange angle, the fresh blood pouring from her hand and dropping to the ground, forming a bizarre formation following her steps. Her complexion grew paler, and her whole body trembled more intensely, until, having completed all the routes, she finally collapsed on the ground due to excessive blood loss.
