Ten years ago, all the yin-yang masters in China carried out a plan. Since then, there have been no more yin-yang masters in the country, and demons and ghosts have vanished as well.
Though Ye Hui, the last yin-yang master, possesses astonishing talent, he lives an ordinary life.
That is, until the day he meets Tsuchimikado Reine, a young yin-yang master from Japan who seeks his help. From then on, he becomes caught up in one troublesome incident after another, while the sealed history is about to be revealed, piece by piece...
And so begins the tale of a yin-yang master in the modern city!