Even Though I'm a Super Timid Noble Girl, I Accepted the Bet from My Cunning Fiancé

Reincarnated as a mob villainess! But isn't there something off about this situation?!

I was reincarnated into an otome game as a count's villainous daughter, Pia. But fearing my fate of banishment from the kingdom, I became extremely timid. After deciding the breaking of my engagement and becoming a curator, the Prime Minister's son steps forth and I'm thrown into an unexpected plot twist...!?