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

Summary

A high-intensity action sequence describes an intruder's violent infiltration of a villa, systematically eliminating eight combat soldiers through extraordinary combat skills. Despite sustaining severe injuries from bullets and grenade blasts, the intruder continues fighting. The narrative climaxes with a confrontation against an old man on a monitor screen, who appears to be the mastermind. The intruder suggests another person will ultimately seek revenge, hinting at a larger, unresolved conflict with potential future consequences.

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