It really confused me after just watching it's okay to not be okay and the CEO of always was the older sang-tae and then the intern at always was the younger sang-tae! It was so funny to see them in the same room!
I understand the ending and why he had to return to his original timeline but it annoyed me that they didn’t get to be happy together and that so young isn’t actually who the king fell in love with if you get what I mean. I liked it but I just felt it was a bit anticlimactic for an overall literally amazing drama.