Dramas similar to secondary couples

Hi,

I have some dramas where I liked the characters but hadn't got enough of them in that show. So thought of finding similar ones now as I am going through drama slump.

Please recommend me dramas where the main couples characterization, story line, set up are similar to the ones I am mentioning below,

1. Kim won and Hyun joo from The heirs. Means the rich ML actually leaves FL for property or to fulfill his responsibilities but realises his mistake later and finds a way to get both and has happy ending.

2. The secondary couple from the masked lover(Taiwanese drama). The Mafia man and a normal girl story where he pursues her nicely without any blackmail or debt clearing involved.

3. Mars drama main couple. I just loved the way they showed trauma and love.

4. Doctors main couple. Older ML starts as a mentor to the FL later falls in love, pursues her but FL doesn't reciprocate soon and takes her time or she is already in love with someone else of her age.

5. Main couple from My love eundong. Means reunited lovers where FL has amnesia but ML clears knows that she is his ex-lover and pursues her.

I know the list is bit long but I would be glad even if you give me suggestions for atleast one of the above.

Any language drama is fine but not too long dramas.

Thanks in advance :)

 rakul:

Memory Lost (2016)

It completely fits your description more than one of these :) and you won't believe it has got such good response that they have even made sequel :) Hope you like it :)

Thanks for your recommendation, but sorry I am not looking for something that has all i specified. I am looking for different dramas for each of them.

 rakul:

 No please don't say sorry what I gave you is exactly what you are looking. It fits your number 5 description amnesia and pursing thing ex lover etc that number 5th one it completely fit let me tell you the synopsis there is  fl who resembles I don't want to spoil it for you and male lead is finding his fiance  and noone believes in him that her fiancé even existed in one case both of them cross each other believes she is his ...... and he keeps uncovering all mysteries to know about more and more fl and get close to her  keeps pursuing after her  please don't go on my description and check out 1 episode or atleast trailer. Please trust me :)

Sure then, I will definitely give it a try. Thanks :)

I have a lover- this is also similar to my love eundong. 

 Gatcha:

I have a lover- this is also similar to my love eundong. 

Thank you. If you remember any other drama suggestions please come back and mention.