The Sword Sect's most useless mixed spiritual root junior sister, Yun Taotao, goes down the mountain to search for her family, and on the first day she is bullied, mocked, and targeted. But she doesn't know that the broken wooden sword thrown into the dry well will fly back by itself. The teahouse owner, the shaking-handed doctor, the storyteller, and the ferryman are all hidden senior brothers scattered in the mortal world for five hundred years. The Profound Yin Saintess Mo Yao tears open her secret: locked inside her body is the sword bone of an ancient immortal sword. Who sealed the sword bone in? Why did the eldest senior brother leave a note and disappear when the truth was about to be revealed? Within the tree shadows, the seal is about to awaken.