Read Sovereign and Heartburn / 君主様に胸やけ / 주군, 속이 쓰립니다 The main character, Aria, is a career woman who serves as the captain of the prince’s guard at a young age in the Rosenberg Empire. Her lord, Prince Julius, not only possesses immense wealth and power but also has a stunning appearance that everyone can’t help but acknowledge. Unfortunately, his personality is a total disaster. Aria is fed up with being tossed around by him every day. But surprisingly, Julius might just want to be with Aria…?? It’s the divine-looking prince versus the overworked female knight, and a precious master-servant bickering couple is born!