Reborn in an island nation after the bubble bursts, Iijima Tanigumo's original plan was to study hard, get into the University of Tokyo, and then go home to inherit his family's vast fortune.

However, a scroll depicting a hundred demons that came with him gave Gu Yun the ability to see monsters.

Helpless, Gu Yun had no choice but to revise her life plan.

"In order not to inherit a vast fortune," Gu Yun said, "I have decided to become a demon exorcist."