Facts about 5 dramas that you might not know: Son Ye-jin and Jung Hae-in almost worked together for the second time?

Below are some Drama T.M.I that not many drama fans know.
https://kbizoom.com/facts-about-5-dramas-that-you-might-not-know-son-ye-jin-and-jung-hae-in-almost-worked-together-for-the-second-time/