Recently, 'Cross-World' stories is popular for Japan & Korean manga/anime. Though I've only known less than 10 such novels, I believe this is a fresh plot with all of it's romance and overwhelming cuteness. What makes this very enjoyable is because the setting is on highschool, young love with their innocence and hot blooded tendency.
Same cliche sweet moments you know, yet sometimes unexpected. But still, cute as hell. It makes you want to say "Ah, youngsters" and put a silly smile on your face.
It amazes me how they choose the actors and actresses. It's like their faces are chosen as they're supposed to be. You know, your typical 'main characters' and everything. Also, I think they are really good at portraying their character, especially the Main Character(an extra, not even support character by plot) Eun Dan Oh. I don't have any comments for her except perfect.
I've enjoyed the current 12 episodes thus far, rarely do I'm looking forward to follow ongoing drama like this. I just hope they don't ruin the plot because there's still 20 more episodes. I know good dramas with so much potential but ruined because they need to make filler episodes that totally ruined the good plot.