True Detective Mr. Qin (2023)

Both are short length dramas in which the ML has two personalities.
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One of the leads has two distinct personalities.
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One of the leads has two distinct personalities.
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Both are shorter length dramas in which the ML has two very different personalities. At first his behavior confuses the FL until she learns his secret.

Both are Republican Era dramas about mysteries that initially appear to be supernatural.
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Both are Republican Era mini dramas in which the FL and detective ML are working together to solve murders and mysteries around the city.

Both are mini dramas in which the MLs have two entirely different personalities.
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Both are short length dramas in which the ML has two personalities.
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