Shen Jin: The first male is 9 years older than the second male. As a child, he witnessed his father's murder of his mother and subsequent suicide. He stayed in a neighbor's house with a withdrawn personality and a lack of sense of security. As an adult, he became a top international killer, codenamed "Jhin". He acted ruthlessly, leaving only a soft spot in his heart left for his youth.
• Wen Ruan: The second male lead, Shen Jin's brother next door when he was living in the hospital. He has been attached to Shen Jin since he was a child. He is gentle, stubborn, and devoted in love. He endures and grows up to become the president of a top domestic group. He is affectionate and paranoid, and must be Shen Jin.
Core tags: Dark Redemption/Nursing Up/Reunion/Strong Confrontation/Forbidden Affection/Sadism and Sweetness
