My Hero Series: Matupoom Haeng Huajai (2018)

They are similar because,
Firstly, both are story of a person who's work is serving his country.
Secondly, male lead fall in love and that girl helped him in his work.

They are similar because,
Firstly, both are story of a person who's work is serving his country.
Secondly, male lead fall in love and that girl helped him in his work.

Same goes to other Paragit Ruk series.