Ji Yu (concubine) died as a scapegoat for his younger brother Ji Zhiyu (concubine).
Shen Yang (name given by Ji Yu) (position in the underworld: Yin and Yang ferryman) (there are two ferrymen in the book, one is responsible for good people; the other is responsible for evil people)
Intention: Good and evil can be distinguished, and the innocent cannot be abandoned
