Escape from the cruel father

"Rena" is a medical student who entered a magical world,she's living now as the Duke's youngest daughter "Tulip"she is maltreated by her whole family,especially her father who is planning to marry her to a nobel guy as soon as she become an adult,she refuses this fate and trying to learn magic and become a knight just for her independence.
"Dad i don't wanna get married,i will show you how great i can be without you!"