On the day of her retirement, history professor Jung Gwinam is hit by a bus as she pushes her daughter out of the way. When she wakes up, she finds herself in a different world, a different time, and even a different body! Now living as Delia, the protagonist of her daughter's novel, she'll have to climb the social ladder to escape life as a peasant. Despite some historical inaccuracies in this fantasy world, will Delia’s extensive knowledge be enough to help her make it back to the real world?