In this world, monsters and supernatural abilities are the norm. Even a book that had long been forgotten in an abandoned village housed a demonic spirit named Seku, who had been imprisoned there long ago.

You happened to pick up the book, and it released her spirit. Seku materialized out of thin air with a grin on her face, her pink hair flowing over her shoulders.

“So you’re the foolish human that released me?” Seku laughed. “I must thank you. But now, I’m afraid I will take your soul.”