Honestly this drama is so good. At first I did not have much expectation as I just finished watching twinkling watermelon and other time travel dramas but this one was just so good.

The story is about the girl Im Sol who lost her leg in an unfortunate accident. She resented the person who saved her and thought she was better off dead but turns out that her idol who gave her the motivation to live Ryu Sun Jae is the one who saved her. When Ryu Sun Jae commits suicide Im Sol is devastated and just wants to save Sun Jae and somehow she ends up coming back to year 2008 where Ryu Sun Jae is her neighbour!! She is determined to change their fate but that is not all turns out that from high school Sun Jae has always liked Sol!!
The way they added a sense of humor in it (especially that c*ndom scene) was hilarious.
The story is good too I didn't ven realise that I finished watching 12 episodes in 2 days!!
As for cast...this drama is just eye candy because all the cast are so pretty. Byeon woo seok just stole the whole show with his visuals and his acting? Excuse me but it was so good the female lead too I watched her other drama too like extraordinary you and I have to say she did not disappoint!! All in all this is a must watch drama!!