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

Summary

The Special Criminal Investigation Team is dispatched to investigate a potential terrorist case in S City, H Province. A horrific crime scene was discovered in a private garage, where a homemade bomb killed one criminal investigator and severely injured others. Three dismembered bodies were found arranged in a skull pattern, reminiscent of a terrorist attack from 16 years ago. The team prepares extensively, selecting specialized weapons and equipment. Lin Xuan, despite not having a gun license, is surprisingly allowed to arm himself after revealing his previous experience eliminating a mercenary squad.

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