Yun Muyan's family was exterminated at the age of six, and she was the only one who survived. Later, the landlord of Wenxuanfang trained her to be an assassin. During one of her assassinations, she encountered a plot and when she killed everyone, she was seriously injured and fell into a coma. Jiang Shu, the eldest lady of Jiang Mansion, found her and rescued her. Later, the two became friends and worked together to investigate the truth of the tragedy...
Concept: The darkness between people