Lin Yuan, a swordsman genius who met once in a thousand years in Qingxiao Mountain, was ordered by his master to go down the mountain to slay demons. He originally thought that it was just an experience in the world of mortals, and that he could return to the path of immortality once all the evil spirits were wiped out.
Until he met the herbal medicine woman Su Yao who used her mortal body to compete with the power of heaven in the flood that was devouring all living things. The tenacity and compassion in her clear eyes shook his Taoist heart more deeply than the sharpest sword moves.
From then on, the sword of the Sword Immortal could cut off demons, but not love; it could save the common people, but it could not save oneself.
When the world-destroying calamity comes again, his master orders him to cut off his love with a sword and return to the road. Behind him are the lights of thousands of families and the only one he wants to protect.
Lin Yuan stood with his sword in hand, facing the most difficult decision in his life: to continue to be the Nine Heavens Sword Immortal who forgets his love, or to fall into the mortal world and live for only one person.
