A blood-stained soapstone seal shattered the peaceful life of wealthy daughter Shen Yuran. Her father died mysteriously and the family conspiracy was hidden. She was forced to flee hastily and hide in the laundry room on the ground floor of Shanghai Beach.
However, this is no safe haven. The mysterious "bloody clothes", the sudden manhunt, the unpredictable "companions" around her... Heavy fog draws her into a deeper and unpredictable whirlpool. She is a lamb to be slaughtered in the eyes of others and an unexpected variable on the enemy's chessboard.
Under the guidance of Mama Gu, she first got involved in secret warfare; under the guidance of Mr. Meng, she was tempered into steel. From the neon lights on the beach to the beacon fire in the northern base, she transformed from a terrified fugitive into a warrior with firm convictions.
When the "Blue Bird" returns to its nest again, it still faces the familiar yet unfamiliar Shura Field. A cold-blooded brother, a sinister detective, a mysterious opponent codenamed "Old Dog"... But this time, she is no longer the former Wu Xia Amon.
This is a solitary walk in the dark night that dances on the tip of a knife, and it is also a transformation in the current of the times. Let's see how Shen Yuran breaks through the many obstacles in this turbulent and troubled world and finds the final answer to his family, country and individual.
