Lady Agnès, the daughter of a marquess, has been deeply in love with and engaged to Crown Prince Lucilleur for many long years. But her world shatters when she receives the devastating news that he has called off their engagement, while her love rival stood by his side. Feeling unloved and abandoned, facing a future filled with oppression, Agnès decides to take a drastic action in order to protect her family, freedom, and pride. However, unexpectedly, Lucilleur becomes obsessively drawn to Agnès. Thus begins a complicated love story between two stubborn individuals who struggle to be honest with each other. What will unfold in the midst of their tangled romance? Only time will tell the outcome. This is a strong-willed marchioness × a stubborn yandere Crown Prince. It’s a love story filled with misunderstandings between these two headstrong individuals.