Su Wantang was seven years old when her master picked her up the mountain. The master said that she was a genius that could only be seen in a century, and he wanted to teach her to cultivate immortality himself. When she was eighteen years old, she discovered that her master's cultivation fluctuated. He would sometimes vomit blood in the middle of the night, and there was always a smell of blood on his body. That day she secretly went down the mountain, and at the coffin shop in the east of the city, she heard Liu Sandao spill the beans - she was not a genius, she was just using medicine to extend her master's life. Su Wantang returned to the mountain and suddenly smiled when she saw her master teaching her swordsmanship as if nothing had happened. She decided to pretend she didn't know anything and continue to be the good apprentice. But she didn't know that her master was trying to protect her every night, and she could no longer hold on.