I'll Become a Villainess Who Goes Down in History, Vol. 3 (novel) — Izumi Okido

Hooray! I, Alicia Williams, am finally being exiled! Though Duke has been daringly forward with his displays of affection, suddenly his interest in me vanishes. Something made him lose his memories, but only the ones about me. For whatever reason, I'm being framed as the perp who stole Duke's memories. Throw in some claims of my terrible treatment of Liz as the cherry on top and the result is...banishment! This is the opposite of a problem to me though. It fits right into my plans to become the greatest villainess in history. Now all I need is the right disguise...