Ren Yinjiu, a big shot in the martial world, is known for his exaggerated personality and extreme actions. He often resorts to any means to achieve his goals and has made many enemies during his two decades of dominance in the martial world. Detective Ye Weixin once heard news during an investigation that someone was planning to kill Ren. When this news reached Ren's ears, he thought it was trivial. However, while getting a haircut one day, a bullet flew out from the dark and left a burnt mark on Ren's hair. Ren had no choice but to believe that this was a hard fact. He immediately called for a martial world conference using the phrase "urgent situation in the martial world." After Ye took over the investigation, he asked Ren who he suspected it might be, prompting Ren to consider the famous line from Gu Long's novels: "Your greatest enemy will always be the friend by your side."