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?
Mary the second princess of Selvincia has often envied her twin sister for being the heir to the thrown. So when Mary decides to come up with a plan to get the same status as her sister, she makes a bet with her best friend. The Prince Bet. But this bet would soon lead Mary into situations she'd never thought she would be in. While Mary tries to stay out of the spotlight, it's kinda hard when your hanging around a prince of another country. It's even harder when your falling in love with that princes personal guard!