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

Summary

The text describes a day spent shooting at a range, where Guan Feng teaches Chen Qing Xin shooting skills. After practicing, they go to Zhang Lan's house for dinner. Zhang Lan, hoping to get advice for an upcoming business negotiation with a Japanese cosmetics consortium, seeks Guan Feng's guidance. During the meal, Guan Feng shares negotiation techniques and provides insights into reading facial expressions and body language. The evening is filled with friendly conversation, delicious food, and professional mentorship, with Zhang Lan hoping to benefit from Guan Feng's expertise for her future business prospects.

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