lumnayan

Someone also pointed out that Min Chae is actually reading the diary in 2021 so might just be born around 2007 and Hee Do married earlier. So when Yi Jin made his "late" congratulations" it might actually be too late.

The ending is hinting a bit of "La La Land" where they part ways but will always be supportive of each other's dreams and success.

Anyway, I am just happy that Seungwan is out there doing her thing.

Also adding that Hee Do may actually be married BEFORE 2009 because as Yi Jin said in the interview, "and I know it's a little late, but congratulations, on your wedding" implying that some time has passed since Hee Do's marriage.

If the two of them had gotten married and were just "acting" for the sake of their professional lives, why would Yi Jin congratulate Hee Do in the first place? Wouldn't the whole nation be suspicious if a main anchor from UBS suddenly congratulated a famous national athlete for a wedding that was not publicized?

Keep in mind the Korean Age system. Min Chae being 15 in the present (Korean age) means that she is just actually 13 in terms of international age. And if you calculate 2022-13 that gives us 2009, which fits in the year that Hee Do got married (and later got pregnant and gave birth to Min Chae). It is evident that the writer disclosed Min Chae's age (15) instead of her birth year (which is more accurate) to keep the ongoing mystery of who is her biological father.

The Korean age counting system is a little bit complicated to explain, but there are videos on YouTube easily explaining it.