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

Summary

Summary: In a tense nighttime scenario, Li Xi Zhen, a spy from Kimchi Country, attempts to escape from Dragon Kingdom's C City after her spy network's collapse. While hiding in a basement storage room and preparing for extraction, she is confronted by a male operative who intends to eliminate her for mission failure. Unexpectedly, a terrifying figure (implied to be Cheng Gao Ang) intervenes, brutally dismembering both the male operative and Li Xi Zhen, preventing her suicide attempt and leaving her in a horrific, mutilated state.

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