100%下心で王太子殿下に優しくしてたら公爵令嬢と婚約破棄をすると言い出したのでちょっと待ってほしい (Associated Names)

During the extravagant graduation party at the aristocratic academy, an unexpected event occurred. The Crown Prince decided to break off his engagement with the Duke’s daughter. It appears that he was reacting strongly to the Earl’s daughter, who had been overly familiar with him and was subjected to vicious bullying.