Solving the Case is Slightly Bitter, My Sister is Super Sweet.

Summary

Summary: In the Public Security Department, Deputy Director Liu Yan discovers a highly classified file for Lin Xuan, which triggers her intense curiosity and fear. Despite her concerns, she interviews Lin Xuan, who is being recruited to the Special Criminal Investigation Team. Lin Xuan, a newly promoted officer with experience in solving kidnapping and murder cases, is introduced to Team Leader Wang Meng. The recruitment process is unusual, with Liu Yan showing particular caution and interest in Lin Xuan's background, hinting at his extraordinary capabilities and mysterious past.

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