The rivers and lakes are cruel, just like today's society, no one is a lotus flower that emerges from the mud and is unstained, everyone has dark qualities.
She is the killer "Second", and she is the courtesan "First Chen". Which one is her? The rivers and lakes have washed away her innocence and kindness, making her worldly and cruel. How will she achieve redemption?
The arena has transformed him from an arrogant young man into a mature and calm night killer. What on earth is he doing?
He is an erratic figure, a middle-aged butler, a hunchbacked old man, a fool... What is his purpose?