I broke off my engagement with a man whose way of thinking I couldn't understand. I don't regret it. I really don't regret it.

Esterlina, the Duke of Maldos's daughter, and Luido, the Count of Hassel's son, are long-time fiancés. At her first royal ball, Luido dances only with other young ladies, even though since childhood, because his body was weak, she has always followed him and deepened their bond through interaction. She cannot understand his way of thinking. And she senses malice from someone. Esterlina decides to settle things with Luido and the one who harbors this malice.