this series became my all time favourite drama in just a few episodes. This is another retelling of romeo and juliet and i have to say that it's most definitely one of my favourite versions (also because it has a happy ending). This drama is centred around the male lead's vengeance for the female lead's father killing his father and brother, and for a while he thinks, that his niece and sister in law where murdered as well. At first he doesn't know seryeong's identity and first thinks she's a princess and then a maid. He finds out who she is after his father gets killed. I won't spoil too much, but it's the best drama i've seen!
I love how the ending portrays forgiveness, it made me cry seeing her father glad that they are together (when he thinks that they're dead).