As I expected, I did not find the antagonist’s story good enough. I really wish there was more to it for it to be more believable because why in each timeline, he is there to somehow target either Im Sol or Sun-jae? I think it could have developed better if they didn't just pull the "because he is just a psycho & kills". Either that or used different antagonists and circumstances in each timeline, but I know that it would probably make this "light drama" heavier than it is.

The usual problem of romance & fantasy K-dramas is really using the fantasy aspect to the plot’s convenience, making the “world-building” unbelievable. By that, I mean the time travelling part can be changed as it goes on and there can be inconsistencies.

Those are the reasons I’m giving this drama a 4-star instead of a full 5. Despite it, I believe I’ve enjoyed it enough to disregard it, because the goal here really is to have THAT kind of ending for these characters. It is cliche; it follows a usual formula and you definitely want these two leads to end up together because, really, THAT IS THE POINT!

Overall, the pacing is ok but it can still be done in at least 10 to 12 episodes. The cast and acting is great. The two female and male leads have an exploding chemistry; the 2nd male lead also has great chemistry with the two which makes the drama have good bromance and love triangle. Lovely Runner woke me up from a drama slump and I miss dramas like this.