Zhang Ruoli's parents were seriously injured in a car accident. When they were in the emergency room, due to excessive blood loss, the ghosts and gods were about to take them away, but Zhang Ruoli actually saw the ghosts and gods and stopped them. Because the ghosts and gods did not take away Zhang Ruoli's parents, they were demoted as the ghosts of justice, and worked with Zhang Ruoli to clear away the grievances of those who died unjustly.