Both female leads eventually have to abide in an arranged marriage for political reasons or the general good of the nation. They both have strong female personalities that opposes to the usual 'damsel-in-distress' stereotype, but also have a lighthearted, youthful side to them. Both male leads are skilled fighters and are born into royalty. For different reasons, they aren't able to recall their memories.

However, GMP was a whole ride of emotions. YOu need tissues for this one. With TLH, I can see this being a sweet, butterflies-in-the-stomach, and squeals of joy kind of drama.

Hope I didn't spoil anything.