There isn't actually that much drama,. Contrarily to other series, the drama was necessary to create a complete story with not plot holes, and it makes the story more realistic because of the troubles they have to go through. After all, the relationship between a princess and an "exiled" former prince wouldn't be all sunshine and rainbows.
Wish there were more chapters. Cute story, nice relationship dynamic (?)
I Picked Up the Second Male Lead After the Ending