Just headcanons, and stuff like that.

Erika Lovet is used to being in the background, always in her sister's shadow. Since she was a child, her parents have always doted on Alice, have always wanted the best for her, while Erika, the other child, is always thought of second, but still expected to be like her sister. So, it's a surprise to everyone when the dashing Prince asks for Erika, and not her sister. Who knew that the only person to notice Erika first, just happens to be the one that every other girl in the land desires?