I, King of Criminal Investigation, Solving the Rainy Night Serial Murders from the Beginning.

Summary

Guan Feng helps Gao Da Cheng prepare for the municipal expert assessment in micro-expression analysis. The team supports Gao Da Cheng, joking about treating them to meals if he passes. Guan Feng contacts Qin to arrange the assessment, emphasizing the need to avoid conflicts of interest. Old Qin agrees to personally oversee the assessment, praising Guan Feng's training approach. Gao Da Cheng is nervous but confident with Guan Feng's support.

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