Mikan Sakura is a ten-year-old girl who lives in the country with her grandfather. She is planning a protest to keep her elementary school from being demolished; however, none of her classmates join her because they think it can't be saved. But Mikan, although devastated, wants to save it because it contains so many precious memories, including that of her meeting Hotaru for the first time the year prior. Later that night, she runs away from home and mentally apologizes to her grandfather for running away to see Hotaru. Her mission is to find Alice Academy and make sure that Hotaru is alright.