Jianghu World Detective

Both are historical mini dramas in which the leads are working together to investigate mysteries, and one of the leads has a secret identity/goal.

Both are historical mini dramas with a similar dynamic between the leads.
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Both are mini dramas about a strange mystery that the leads are working together to solve. Both MLs have a hidden identity, and both FLs are hiding a secret.

Both are mini dramas in which the leads are working together to solve strange mysteries and uncover a secret.

Both are mini dramas in which the leads are working together to solve strange mysteries.
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Both are mini dramas in which the leads are working together to solve strange mysteries, and one of the two is secretly working for someone else and may end up on the opposite side of the other lead.

Both are historical mini dramas in which the leads are working together to solve mysteries.
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Both are historical dramas of a shorter length in which the leads are working together to solve strange mysteries.