To save his mother, Bao Butong puts on Bao Gong opera costume, only to accidentally step into a world of demons and monsters. With a white fox filled with monstrous resentment because its cave was destroyed, he faces the enemy holding a wooden guillotine. As fresh blood drips, he awakens the Bao Gong Role-Play System. A three-foot official desk rises from the ground, and with a slap of the gavel, demons and spirits bow their heads. He acts as judge for the white fox, clears its grievance, and resolves a hundred-year resentment. Executing gods and buddhas above, executing ghosts and monsters below, gathering the four major guardians to protect the mortal realm on the path of righteousness, Bao Butong henceforth walks between the yin and yang realms. With upright righteousness and a guillotine in hand, he cuts down mortal grievances and slays the evil specters of the world.