Both drama's lead is a doctor and in the process they also inspired their partner to step out of their comfort zone.

Both dramas uses double male leads and are of crime solving/ conspiracy genre. Though background are set in different era, overall story plot are similar

Both are crime solving natured dramas and a lot of plot twists and turns are buried in the stories! Equally enjoyable and some bromance too!

Both are of crime solving nature and had lots of plot twists and turns hidden within the stories. Similarly, both dramas leans closer towards double male leads but the female leads are equally important.

Though Tientsin Mystic is definitely a better made drama of the similar genre. Both dramas had the double male lead casting and both are also of the crime solving genre as the dramas look for what lays behind the conspiracy.

Similar character setup story genre. The drama also focus more on the female lead's power over the male lead.

Same background set, both are in school setting and both FL got bullied because of plain looks.
The leads overcome the issues together and come to accept their own flaws as the friends bought courage to each other.

Similar genres: Reverse Harem and both male leads and female leads had their hidden agenda as compared to how they behave themselves on the surface.