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

Summary

In a residential building, police officers Lin Xuan and Gou Ji Yun question Zheng Yu Tong, a friend of a missing woman, Wu Xiao Hui. Noticing Zheng's luxury items despite her being unemployed, Lin grows suspicious. During the interrogation, Zheng appears calm but her physiological responses—pupil contractions and heart palpitations—betray her. Lin's enhanced senses allow him to detect her deception, leading to an intense confrontation. Zheng's facade crumbles as she realizes Lin's insight, revealing her fear and confusion. The investigation hints at deeper connections and possible guilt surrounding Wu's disappearance.

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