Manhwa: Why Raeliana Ended Up at the Duke's Mansion, Vol. 1

Eunha Park was just a regular girl desperate to get into college, but when
she finally
does, her elation is cut short as she's pushed off a
roof-only to wake up as Raeliana
McMillan, a character from a novel whose
death serves as the catalyst for the story's
events. But Raeliana
refuses to die a second time and is determined to change her
fate, no matter
what!