In the Great Chu dynasty, the uncanny runs rampant. Ordinary people live in fear, and the Demon Suppression Bureau is the only place capable of fighting back. Zhao Lie, a border scout demoted to the Bureau, unexpectedly awakens the Eye of Truth, which can see through the rules and weaknesses of the uncanny. Others risk their lives to kill monsters. He uses his brains. But within the Bureau, some want him dead, some want to use him, and others want to drag him into their schemes. Worse still, a great uncanny entity that has been plotting for twenty years lurks in the capital. It doesn't want human lives, but the whole of Great Chu. Zhao Lie just wants to survive, but if the uncanny won't give him a way out, then he'll have to slaughter every last one of them.