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

Summary

Summary: Lin Xuan investigates a series of mysterious deaths linked to water poisoning in supermarkets. The victims all purchased bottled water before dying from a virus that rapidly dissolves human flesh. The investigation leads to Cheng Gao Ang, a 24-year-old graduate student who died of sudden cardiac arrest. Lin Xuan suspects foul play and discovers Cheng's four-month overseas exchange in the Kimchi Country. He contacts the National Security Bureau to investigate Cheng's background and potential connections to the bizarre deaths.

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