Both have a vain and lazy king who is not interested in resolving issues and is forced to get married to a smart but ugly woman. He has another wife who is very beautiful and he dotes on her. Both dramas, "ugly" queens have the same red mark in their face and probably based on same story.

In both dramas the premise is the same- what happens in the life of group of school going friends. It gives the same vibe.

In both dramas the FL falls in love with father and son. In ice girl, the girl is frozen and reawakens during which period the father becomes old and the son is an adult.

Both dramas shows the use of forensic pathology to solve crimes and catch the killer. While unnatural death solely focuses on the forensic part, Dr Qin includes police work too.
Both have excellent female leads but Dr Qin is more graphical.

The concept is the same with two couples getting married on the same day get to know that their future spouse had an affair with someone else.

In both dramas the ML is dating a beautiful model but cant help being attracted to a woman who is considered as ugly.

Both are about lawyers who takes on clients with 99.9% chance of guilty. In Scandal the protagonist is a female while in 99.9 Keiji it is a male.

In both dramas the FL has a new face and amnesia. In Nakark Kaew, FL meets with an accident and loses memory and a cosmetic surgery is forced upon her whereas in Let me introduce her, the FL chooses to have cosmetic surgery as a means of escape.

Both are about FLs who are trying to get back on their feet after their divorce. Both have kids . MLs are FLs's senior in the office and are younger than FL.In both dramas the ML chases the FL and support them in their new venture.

In both dramas, the FL are diagnosed with gynaecological issues and are advised to have kids. Based on this advise, the FLs tries to find the right man for her. In both dramas the leads are neighbors.

Both leads are stepbrother and sister.In both dramas the male leads takes revenge of the female lead whose's mother he believes was the cause of his family's problems.

Both have a rich male celebrity meeting the relatively poorer FL again after many years. In Radio Romance the ML is in entertainment business where as the other the Ml is a famours designer.