Su Nian, the most inconspicuous handyman disciple of the Yunmiao Sect, was expelled from the sect by his master, Yun Jin, who had his spiritual roots revoked on the grounds of "dull aptitude".
When she fell into the abyss, she saw a dark red blood stain on the inside of her sleeves when her master turned around.
Under the abyss, the remnant soul in a blood-stained ancient jade told her: she was not a mortal, but the reincarnation of the ancient sword god remnant consciousness, born with sword bones. The master accepted her as a disciple for ten years, suppressed her sword bones for ten years, and coughed up blood for her for ten years.
"Why didn't he tell me?"
"Because if you know, you will definitely go back."
Three years later, Su Nian returned from the abyss with his invisible sword power. The mountain gate remains the same, but the old friend is blind. She drew her sword and held it to her master's throat, her hands trembling.
"I'm back. You owe me an answer."
On the day when a hundred thousand demonic troops invaded the territory, she finally learned the whole truth - some betrayal was the deepest layer of protection in the world.