TogoAlfa:

3. Missing you

Maybe the issue on the 1 year separation I am misunderstanding it.

No. If possible no year separation, they keep being friend or keep contact. But if hard separation is OK. Not kind of childhood friend but separated & meet again later in the adult years. Like for examples My Little Happiness, is not the drama for this...

4. Fight For My Way

5. Romance Is a Bonus Book

6. Happiness (friends since high school, does it count?) 

 Ahn Sarang:

4. Fight For My Way

5. Romance Is a Bonus Book

6. Happiness (friends since high school, does it count?) 

Yeah that's ok

In Time With You (2011)
Bubblegum (2015)

9. Go Ahead the couple ML and FL are raised together from childhood in a blended family but after HS, he is forced to go to Singapore to care for his mother who abandoned him as a child. Although they are not physically together, they still video chat on holidays and send messages every now and again. He does not return until she is 25 or so.

10. Adult Trainee


10 titles with a big time jump (10-90 years) during a someone's lifetime


Majority of drama should be set in the past/present and time jump should go to the present/future. No short flashbacks/pre story


Also, it can be series of relatively big time jumps to depict a long period of time, like in biopics


1. Love, Lies

2. Youth of May

3. Empress Ki

4. Hu Tong - split into 3 chapters that span from Tian Zao (first FL, played by Zhao Lu Si) when she is a young woman, then becomes a mother, and then a grandmother (from 1950s to present day)

5 go ahead - start from childhood, high school & adult

6. Joy of Life- From baby to kid to adult time jumps

7.Reborn Rich- ML as a child and then jump to university age

8.Ugly alert- kids to adult time  

 Saygo:

6. Joy of Life- From baby to kid to adult time jumps

7.Reborn Rich- ML as a child and then jump to university age

If I remember correctly, Reborn Rich set in ML's adult years? If his pre story took like 1-2 episodes out of 16, it doesn't count

Not sure Ugly Alert would count either, as I don't  think the ML was shown as a child for even 10 episodes out of 100+.