Nuu
: So, let me get this straight, the prince is supposed to marry a saint and being a saint is a bloodline thing So eventually, the royal bloodline will have all 4 saints in their blood and they would then not be unable to marry a saint because that would be kinda incest, and to avoid closeness in blood, they have to cycle which saint they marry because there would be a distance of 3 generations before you have the marry the same saint bloodline There's also the fact that mc is the only one in her bloodline and the fertility bloodline is already in the royal family so they'd have to have to give birth to a graveyard saint if they get married
Feeds
So eventually, the royal bloodline will have all 4 saints in their blood and they would then not be unable to marry a saint because that would be kinda incest, and to avoid closeness in blood, they have to cycle which saint they marry because there would be a distance of 3 generations before you have the marry the same saint bloodline
There's also the fact that mc is the only one in her bloodline and the fertility bloodline is already in the royal family so they'd have to have to give birth to a graveyard saint if they get married