The Single-Minded Young Lady Wants to Escape the Duke’s Overwhelming Affection

Elentina, the daughter of an Earl, has decided to remain single for the rest of her life, hiding the fact that she is a "witch." Just when she was finally able to break off her engagement with the man her father had chosen for her, Duke Arden has somehow proposed to her!? *I don't want to get married while keeping my true identity a secret...so I'll have to break off our engagement again!* She decides to do this and tries all sorts of schemes, but the Duke won't give up at all! (Source: Kadokawa, translated)