River and Pearl's history was both simple and complicated. She was a high born lady, brought up in prestige, raised to greatness, educated so as to not bring disdain to her family name. He was a rascal who didn't like the idea of inheriting his fathers embroidery business, and so he ran away to see the world and live in adventure.
It also helped that he was tremendously handsome, had high cultivation talent and was friendly enough to befriend even a rock.
When they met, he had been hiding his identity because in his small town his father had been well known, so he used to think everyone everywhere would know him. Similarly, Pearl was hiding her identity because everyone everywhere did know her, but she didn't want to get caught sneaking out of her vacation home and get into trouble.
