both male and female leads fell in love the first time they met in the female leads kingdom but then lost their memories of each other. the second time they met they were in the male leads kingdom and is betrothed to one another but male lead already had someone he likes but eventually falls for the female lead.

both female leads do whatever they want, wild, brave and lovable. both male leads are very scheming.

but I would def recommend Untouchable Lovers if you like Good Bye My Princess and because since it's not completed yet and you want to watch something like GBMP you should watch UL since it is completed!