There were a couple of minor things that detract. First, there's time travel involved but the characters seem strangely disinterested in the ramifications. Second, there's a deadline with potentially deadly consequence that again the characters largely seem to ignore...even when it gets down to seven days they pretty much futz around with other things. There's some chaebol drama that is unnecessary as well. In short, this is not really about time travel.

The rest of it is mostly light and fun with just enough drama for variety. Lee Re is particularly funny in many scenes and is well paired with Choi Kang Hee in the older role.