Noah Anderson, a 16-year-old high school student, who is the only heir of her wealthy family, went out to the school library to study for her exams. While going back home she gets caught in an accident! When she regains consciousness, she has been reincarnated as a 5-year-old girl! On top of that, she is the villainess who is supposed to be exiled to the neighbouring country! Noah gradually realizes that she's in a position where her life is at risk, thus, she decides to try to get along with the male lead to protect herself! In the name of the Andersons, I'll defeat this world and find a way to get back to my world at the same time!!