I was freaking excited seeing the preview trailer, I waited so long for almost all eps to broadcast before i strated watching. To be quite honest the story line is a let down. I was mainly excited because there were a lot of cute scenes in this preview.

Characters-
Female lead- cute, quirky princess who can't sleep at night . When she was young, a rock that can tell the future went into her body. Thus making it hard for her to fall asleep at night, if she does fall asleep she'll either have dreams about the future, or she'll turn into an animal of the zodiac ( which for me was kinda weird)
Male lead is a guard in the palace . He is trying to find out happened to his elder brother who died in the palace. He doesn't trust the princess and her motives.
Second female lead - aka little b*tch , she likes the male lead and does things to get him to like her. initially she was trying to break up the male and female lead... but then afterwards she began friends with the princess. however the second female lead does something in the story that doesnt really make sense.. Which causes a rift in the female and male lead's relationship. ( that was when they were pretty much friends already...)
Princess' brother ( no blood relation) - He is very protective of his sister. Secretly he's in love with her. He's not a strongly developed character.
Third female - aka biggest b*tch... she comes in towards the later parts, and her story honestly is super annoying. Basically she is the slave of the male lead because he conquered her land. Turns out she is the princess in her land. She likes him and wants to marry male lead.

Storyline- To me the first 10 episodes i would summarize as getting married, the female lead trying to escape/ get a divorce, they argue, male lead is suspicious of her.The first 10 episodes was hard to get through... 11- 20ish episodes had more of the sweet and romantic development. I enjoyed that part of the drama.
Summary in shirt : She gets married, tries to get divorce papers/escapes, but always is forced to come back , finds out he's her insomnia medicine, fall in love, gets divorce , misunderstanding, wants to be together, evil female involvement, ... The storyline is not smooth and female lead has such a busy background/identity. It would of been so much better if the focus was on male lead being her insomnia medicine and her dreams help see into the future?

Romance; I love their chemistry and romance!!! Princess is shy to show her emotions and feelings nor is the male lead. I love them together and the time they spend together, love their kissing scenes. I just wish their relationship wasnt so bumpy like being together, getting apart, being together, getting apart....

only two more episodes left, so we'll see how it is.