I've learned to suspend reality when watching certain Kdramas and so I just went with most of the super-confusing timeline crossovers and issues. Yeah, so what if it didn't make a whole lot of sense until the end. I didn't know it was a remake until I got here to write a review and found out from other reviewers. I somewhat regret slogging through this series so I'm certainly not going to watch the original. And the main reason I'm bothering to make this comment is that I'm wondering what happened on the bus at the very end of episode 12. We hear the magical music and and ML asks FL if she is Min-ju and based on the subtitles and her reaction she seems to acknowledge as much. If I got that right--and I went back to watch it a 2nd time--then why didn't she recognize the ML as her former classmate and friend? They were on the same timeline and he remembered enough to ask her name. Why didn't they say like "Hey, haven't seen you in years! How are you?" or whatever folks in South Korea say when they bump into a former friend? It would have made a lot more sense if he had suddenly remembered and asked if she was Jun-Hee. Then she could say "Yes" and he'd have a reason to follow up to figure out how he remembered her. After all, it was to Jun-Hee that he promised he would find her one day. Also, and while it made for good optics to have all of Jun-Hee's and Yeon-Jun's stuff disappear before her eyes--since that timeline wouldn't have occurred--it didn't make sense to me to have her disappear too, unless Jun-Hee was never real to begin with. Which would mean there wasn't a promise to meet again, no great last scene--unless the last scene is just a meeting of two former acquaintances with no other meaning.