Spoilers - but, maybe it will help you follow and figure it out.

Binged this because there was enough detail to make this an interesting and compelling series. But, with the choices made by the writers/director - it created issues that will have you reaching for the fast forward button - often.

With any time travel story - you will have issues. People still argue the existence of the pocket watch in Somewhere In Time (a movie you see on the shelf at the DVD store in this series). Where did the watch come from - originally - if the person from the past gets it from the person from the future but, the person from the future got it from the person from the past - in the present? See what I mean?

We see the DVD store owner becomes integral to the story. He initiates the contact and allows it to unfold - each time (three times). He is always there for guidance - a wonderful mentor/guide. He even makes a decision when the characters finally get it right.

Here's the issue...because we have been fed so much information, when the story moves through the second phase - we already know the outcome - there are almost entire episodes that are a waste of your time. Does it really matter that we get to see their relationship develop when we know the outcome? And, while I understand a time traveler choosing a moment - why wait until a week before the event to make an appearance? Love and sacrifice are already established and understood.

I would have preferred to see where Ongsa went before Suansoon rejoins the present than to see the relationship develop - in detail - the second time (a given that could have been handled with references and a few flashbacks). Create a story where we want to follow what everyone is doing. Not waiting while they have their five minute stares at each other while the soundtrack plays.

Spend less time in phase two and expand phase three/the end. I loved how every character realized that they went through this before but, couldn't quite put their finger on it. Let's see more of that.

I really liked this series for going so deeply into a thought/story that others have not gone before. Would love to see this done by the Koreans with their larger budgets and stronger writers.