This drama increase interest level till 15 episode then it seemed to be same story plot till I watch in this drama . Story about a girl who sometime become victim ,sometime her closeones become victim and sometime her known person (who ahe knows)become victim and to take out all of them from difficulties she takes the help of Revenge note ,which is kind of an app and every time when she used it and think from where it comes ,who helping her by this and she starting guessing who it would be her friend ,jung Deol He or her boyfriend or might be her boyfriend's friend then she stop guessing with saying don't know and used it .I found this drama interesting and also waiting to reveal the name of the person who is behind them but no reveal of name till end .Though Sun woo is in main role but I didn't see his much scene and I am waiting him to end up with Deol He pairing but it is not like that .As I watch this drama in eng subtitle till 17th episode then this drama didn't sub so I watch it raw though I don't understand Korean language much but I get it that the name of person who send her revenge note app is not reveal and last four episodes also not have something new.
But this drama shows beautiful ,cute and small love story ,main characters family scene sometimes cute and funny ,lead actress and his brother cute fighting make me connected with the drama if such scenes were not there it become boring after few episodes.
As a whole it is one time watch drama ,not so good and not so bad.