The Crown Prince and Crown Princess

Men have to marry as soon as they come of age, and the Crown Prince is no exception. The Crown Prince of the Great Yan Dynasty marries a beautiful, refined, and knowledgeable Crown Princess. He's pleased with everything about her except one thing: every day, she has countless matters to attend to, and her thoughts are never on him.

This leaves His Highness the Crown Prince deeply jealous.

Theme: You have to fight for your own happiness