Taikoubou is a young Sennin (a class of supernatural beings) charged by his mentor to seal up all of the rogue Sennin causing trouble in the human world, the chief of whom is Dakki, who has brainwashed the current emperor and causing all sorts of grief for the citizens of the Yin Dynasty... ...or so he thinks. The plot thickens when Taikoubou discovers his mentor to have ulterior motives.