A former prosecutor who was forced to resign due to the mysterious death of his sister five years ago. He has a calm and reserved personality and is good at psychological games. She endured it for seven years, secretly collecting evidence, just to surrender in court. The death of her sister is her only obsession and the only reason for her to wear a lawyer's robe again. A top criminal defense lawyer, who looks cynical on the outside, but is actually burdened with the stain of his undisclosed testimony. He once defended the real murderer and won the case, and now became Shen Zhiyao's temporary partner - not because of justice, but because he had a recording in his hand that could ruin his career.