First things first: this is my first review. Due to the fact that asian dramas reflect a different culture I don't usually write reviews for them because I feel I usually don't have enough understanding of what makes a good story. Also, I don't like to review unfinished series (or anything, really) but I feel that with 13 out of 16 episodes seen I have a pretty good idea where this series is headed. At first I quite enjoyed "Mary Stayed out all Night". Mae-Ri (the female lead) was cute but contemporary and Kang Moo Kyul was really cool (plus, this actor seems to be a pretty good one). Enter Jung In and his father and the whole silly business of arranged weddings; really I've never seen a more elaborate plotline to form a love triangle! While I felt skeptical that it would work, it went fine for a few episodes... then it went downhill! More and more unbelievable situations (those who've watched know what I'm talking about)would arise and the characters just kept on going (to be fair most actors were good in their roles, except for the girl sometimes), accepting everything. When it entered the realm of the almost completely absurd (episode 13) I started to "speed watch" actually. Would I recommend this series? No. The plot is very weak and random and although the characters are endearing, cute and charming and all that they can't make up for the complete lack of sense of the plot (which is also predictable, but that's a minor flaw).