I've been wanting to talk about this show since it aired so thank you for this opportunity haha. I think I know where this drama is headed but this may just be wishful thinking -- that no matter what choices Bong Pil makes in the past, present or future, the ending will be the day of Soo Jin's wedding but the difference will be Bong Pil's feelings toward her. I really hope that through his experiences reliving his life he realizes that there's a reason why he didn't get romantically involved with Soo Jin because she isn't the right person for him. I personally don't think these two characters have much chemistry. In fact, I am hoping that he will end up with Jin Suk and part of his realization on the day of Soo Jin's wedding is that Jin Suk is the one he is meant to be with. She is the only character that he has confided in what is going on with the manhole.. he trusts her and they have always been close friends. Jin Suk has always loved him but was afraid to act on it because she knows how much he is infatuated with Soo Jin. We have seen in almost every episode so far that Jin Suk is bothered by Bong Pil and Soo Jin but she pretends she's fine. I just hope that this show displays how true feelings can develop and change over time and cut it out with Bong Pil's weird obsession with Soo Jin.

It would be super cool if episode 5 was a supernatural episode. Considering Bong Pil is wearing a suit (looking fine as hell I might add) when he comes out of the manhole could mean that he is dressed for his funeral. I had a couple other theories, but it's hard to tell why he might be in a suit so we'll have to wait and see! 

Looks like your theory was right!

I thought at first that's exactly where it was heading ala My Best Friend's Wedding.  But after all the reveals about iffy pharmacist, plus Soo Jin's obvious feelins for Pil (shown in multiple episodes) no, not where it's heading at all.