Chu Fan transmigrates into the game Firmament. In this world, demons run rampant, monsters wreak havoc, and corrupt officials abuse their power. As the legitimate son of the Duke Who Guards the Nation, he is cast out by his family and left to fend for himself in Qingxian County.
The monsters want to eat him, the corrupt officials want to kill him, his stepmother wants him dead, and even his father wants his life!
Fortunately, he awakens a deduction System. He planned to lie low and grow stronger, but by a twist of fate, he saves the future empress. When he discovers that slaying monsters, exorcising demons, and killing people can all earn experience for deductions, he decides to start killing! By the time he reaches the capital, his entire clan is kneeling to welcome him!!
