First half was all kind of awesome but it faltered a bit in the second half imo. As much as I love Danoh in the beginning, she started to grate on my nerves with her overly aegyo (it was cute at first but you get tired of it very quickly). Her world literally revolves around Haru and only Haru (that I almost felt sorry for her other loved ones) I loved her spunk and sass in the beginning but this girl totally disappeared in the second half to my dismay. I really liked Haru but I can't help but think that his characterization fell a little flat in the end. Did he have another meaning in life other than being Danoh's love interest? No. What a shame. Don't get me started with Baek Kyung...his only role was to be a cockblock to our lovebirds...he didn't stand a chance but was too stubborn to admit it *sigh* (they better thank Lee Jae Wook, his flawless portrayal made me care more than I should for an otherwise obnoxious character. Even though, his redemption arc came far too late, he still managed to move me and it brought me to tears when Dan Oh forgave him)
Do Hwa was another character I was really fond of but once again they didn't explore him much and has been relegated as a comic relief.

Self-aware Juda was badass but her decision was quite questionable. While I felt sorry for Nam Joo (and that's probably why she chose him in the end), Do Hwa was a better fit. But we have to remind ourselves that Nam Joo never gained his awareness and that's a bit unfair to solely judge him based on how he's written. Tbh, I wasn't even annoyed by his character, his characterization was so one dimensional that it made me laugh in the end (he was such a riot)
Sae Mi never gained hers or did she? She did bully Juda in the shadows or was it a mistake of the production? She was a lovely friend to Dan Oh but a bitch to Juda (pardon my french). I'm probably the only one that agreed with Baek Kyung's comment on her being a villain (I know that's the pot calling the kettle black but still it was so satisfying). She had to hear the truth somehow even if she forget it in the next scene.

They focused too much on the pointless love triangle that they lost sight of the main themes (and the most interesting ones imo): free will, changing your fate thus stopping the neverending cycle (I would have love for everyone to work together against the writer)
Resulting in underdeveloped characters, plot holes, no explanations whatsoever of crucial points and rushed ending. Still, I enjoyed that drama for the most part and will miss it nevertheless.

Acting-wise, everyone was brilliant.

Kim Hye Yoon was great and though her character lost its momentum in the second half, she managed to give Danoh enough gravitas to keep me invested in her character.

Rowoon/Kim Seok Woo surprised me the most, he nailed the emotional parts and held his own quite well. Kudos to him! Haru is not an easy character to play since his blandness and lack of development could bore the hell out of anyone but he shines and makes you care and root for his happiness (shame they didn't explore more his bad boy side, prefer his look when he returned and lost his memories *shallow me*) . As an idol turned actor, he has the potential to be in the top-tier imo (with Im Siwan, Lee Junho, Do Kyungsoo or even Park Hyung Sik).

Lee Jae Wook ah Lee Jae Wook, my main reason on why I watched this drama and stayed...he was just perfect as usual (give that guy the awards he deserves, he's the rookie of the year, hands down) despite a terrible and disadvantageous characterization. He managed to elevate the character and made it his own. You hate his character (or rather you want) but you can't ignore him and in the end you even pity him. Baek Kyung could have easily become one-dimensional character with no redeemable features but Lee Jae Wook's amazing acting saved his character's poor characterization (conveying loneliness, vulnerability, anger and plenty other emotions as if it was a piece of cake...I swear it seems effortless to him. To think he had to juggle between two complete opposite characters (BK and Seol Ji Hwan) during 1 month makes me respect him so much more. He's a keeper.

OST was beautiful, catchy and fitting.

Does it deserve a rewatch? I'm not one to rewatch series even my most favorite ones so no I won't rewatch it...some scenes, yes (mostly Baek Kyung?! Because...Lee Jae Wook<3)

Final rating: 7.5/10.