About the book: year / A world where the Hero and the Demon King wage an endless battle with each other. The powerful magic they used broke through the border of the worlds and exploded in one of the school classrooms. The disciples who were caught in this explosion were revived in another world. The main character, who had the worst reputation in school, was reborn into a spider. However, she was able to quickly come to terms with her new situation. This is the story of someone who, having become a spider, does everything possible to survive..