Her name was Shen Jinghong. When she was seven years old, she witnessed her father, a monster hunter, being disemboweled by an evil monster.
In a pool of blood, she held her father's broken sword and swore: Kill all the monsters in the world.
Ten years later, she became the sharpest sword in the Immortal Sect, slaying demons when encountering them, never showing mercy. Until she met an old locust tree spirit that had sheltered humans for three generations, a half-demon girl who was abandoned by her tribe, a talisman genius who exterminated her family and fled, a pale girl who could only talk to puppets - and a fox demon with silver hair and blue eyes who always had a lazy smile.
He said that his name was Yin Poyun, and he was once the demon king who ruled Qingqiu. He was betrayed by the person he trusted most and ended up living in the world.
She drew her sword and pointed it at him, and he smiled and handed her a cup of tea.
When the truth gradually emerges, she discovers that the ones who deserve to be killed may not be the demons - the righteous immortal sect who colludes with the evil demons, the so-called masters who use living people to make elixirs, the human heart that is more cruel than the demons... Her ten years of faith were completely shattered at this moment.
Her companions left her one by one, and she stood on the ruins with her hair turned gray overnight, leaving only a fox demon with only two tails behind her.
"Why are you helping me?" She asked.
"I have lived for twelve hundred years," he looked at her with a smile, "to wait for someone I don't want to let die."
This is a story about prejudice and truth, hatred and letting go, and who deserves to die more, man or monster.