After building each character beautifully the writer shits on the very last episode of the show. The character build was amazing and the relationship between all 5 were beautifully written, with focusing majorly on Na-Hee Do and Back-Ye Jin relationship from the start and the series was going great, but I don’t know what went up with the writer that he thought an unpolished, unexplained unnecessary sad ending with major plot holes will make this series rank highest in the list of every k-drama fan, like you got to be kidding me LOL. It completely ruined the mood and I'm sure it disappointed many viewers on so many levels. Both the characters: Na-Hee Do & Back-Ye jin were shown to have great understanding nature, but at the end they were completely out of character and showed no understanding to each others situation whatsoever, fighting over a small bump they had because Ye Jin temporarily moved to NY to cover 911, which could have been easily resolved as he hid no feelings from her but explained everything which caused him depression. Also, she lost some diary of hers on the bus and from nowhere some guy/girl got it and posted it to Back-Ye Jin without any mistake, I mean where did they get the address EXPLAIN?????!!!!, and he after writing some message for Na-Hee Do chose to send it through the "library guy" she used buy comics from, before 2000, instead of sending via post, BOY SERIOUSLY?????!!!!! Well, whatever, the series is not a must watch for sure and you can happily skip if you want. I will not be recommending this to anyone further. It’s a total waste of time!