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

Summary

In Frankfurt, a covert operation unfolds involving Lin Xuan, a skilled operative disguised with a temporary silicone mask and given 48 hours to reach Heidelberg. After being briefed by a Dragon Kingdom Special Agent, he learns about the deployment of fifty elite soldiers seeking to capture or eliminate him. Following his murder of ten elite soldiers previously, he is now targeting a research institute responsible for Wang Jing's death. In a calculated and silent operation, Lin Xuan infiltrates the building, neutralizes the surveillance system, and systematically eliminates eight guards, seventeen top scientists, and over twenty team staff members without leaving any trace.

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