The Evidence Tells

Both series are police procedurals featuring two leads with contrasting personalities and wonderful (and imho subtexty) chemistry.

They're both mystery dramas directed by Li Yutong that feature two female leads (a detective and a medical examiner) with imho nice chemistry. The actress Li Yuan is also in both (as a main character in The Evidence Tells and as a guest character in Duet of Shadows).

Both dramas are mystery series that have two female leads with subtexty chemistry. Both also start with one of the main characters being suspected of murder.