White ash floated down like snow.

“...”

The air seemed to have stopped, and the brown hair of a schoolgirl named Yun Gaeul flew wildly in the stillness. She was wearing her school uniform as she looked around at the familiar ruins that greeted her.

Gaeul opened her hands and checked them. Both were glowing in iridescent colors. Her face turned to one of confusion as she hastily patted down her body.

“…What the hell is this?”

Just moments ago, she had been sitting in class. Now, Gaeul anxiously surveyed her surroundings. There wasn’t a single sign of life. It …