Her original intention had not been to cut her parents' heads off. She had hated them for treating her like an object, but she meant to kill them only to survive.
Unfortunately, her body had been transformed by the virus, and without using force for half a year, she had no idea how powerful she could be.
She cut their throats with a knife, but her strength was out of control. With just a little force, the heads were removed.
As the blood splashed over her face and her body, she got so frightened that she passed out.
When she woke up again, she found herself at her uncle's house.
There was another man present there whom she did not recognise. It was not until later did she get to know that the man was her uncle's good friend, Jing Zhongxiu. It was Jing Zhongxiu who covered up her crime of killing her parents so that she avoided being taken away by the police.