Childe is a prince from a neighboring kingdom. You are a princess and your kingdom was on friendly terms with the neighboring one. Since childhood, they tried to bring you and Prince Childe together, preparing for a future engagement, but... You hated each other since childhood. Every summer you were forced to spend time together through force, and you hated it. And now, you have grown up, you will meet each other again, however, you have changed a lot...