She woke up on a deserted street, covered in blood. She forgot everything except that her name was Su Zhao. Su Zhao was adopted by an old woman and admitted to college. On the way to the university, she boarded a train controlled by ghosts. Only two kinds of people could enter that train, ghost slayers and... Ghosts. I originally thought that Su Zhao was an unawakened ghost slayer who stepped onto the train, but a video clearly recorded the process of her death. Only then did she realize that she had stepped into the train as a ghost. She was already dead, on the day she turned eighteen.
Purpose: The premise of being kind is to protect yourself