14 years later, Arika Yumemiya goes to Garderobe to become an Otome like her mother, who she does not know very much about. She enters the school and when she finds many things which disturb her from being an Otome because of her past, she tries to bear it with her cheerfulness. This story is about how Arika will begin to understand the meaning of being an Otome and how she will save the world from the legendary Harmonium's power.