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

Summary

Lin Xuan, a 22-year-old 3rd-level police supervisor and army major, shares a playful morning with his sister Mu Qing Yan. They engage in affectionate banter while preparing breakfast. Later, at the Public Security Bureau, Liu Yan reveals that his parents and sisters will receive upgraded security details, likely due to his remarkable achievements, including recovering scientific research and eliminating over a hundred people abroad. This security upgrade is seen as a protective measure for high-profile individuals, reflecting his significant status and potential risks.

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