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...!? --- She was reborn as a villainous daughter in a reverse harem otome game. After being sick with a high fever at the age of ten, Pia Rockwell suddenly remembered her past life as a university student in Japan. But far from going down the villainess route, all this super timid girl wants is to finally use her knowledge from when she was a grad student studying to get her doctorate in paleontology. Her ultimate goal is to become a commoner, excavate fossils, build a museum and then become a curator. So in order to escape the villainess route and avoid being deported by her fiancé during the graduation ball, Pia decides to avoid the upcoming hurt and heartache and asks to break off her engagement to Rufus, the Prime Minister's son. But will her cunning fiancé let her go that easily?