Twin sisters Aozora Anna and Aozora Anna were born into a piano family. Their father Aozora Tsubasa was originally a well-known pianist. Aozora Tsubasa loved his two daughters very much. Later, due to an injury to his hand, he decided to retire. When the daughters were 15 years old, they entered Lihai University as a piano tutor, and the daughters transferred to the high school of the High School Affiliated to Lihai University. There, the two sisters met princes such as Seiichi Yukimura, Bunta Marui, and Genichiro Sanada. They also made new friends, and the sisters also found important people. During this period, Qingkong Anna gradually discovered the truth of the blank memories in her mind.
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