A corner of this world is missing.
For three thousand years, no one has ascended.
Human cultivation follows two paths: refining qi to question Heaven, or tempering the body to question oneself.
Both paths have reached their limits, yet neither has led anyone to Heaven.
At the northern frontier, a boy named Li Jiu sets out from Qingshi Town, carrying half of his mad mother on his shoulders and half of an old letter left by his father in his arms.
He can endure anything and bear any burden.
Until one day, a black cat appears and leads him toward Demon-Suppressing Pass.
Beyond Demon-Suppressing Pass are the demons.
Within it are the hearts of men.
And when he looks up at the sky, he realizes the gap above is watching him.
Others seek the Dao to ask for eternal life.
Li Jiu seeks the Dao to ask: Who made this gap, exactly?