Raised by her apathetic guardian, Reki, Mio was instilled with the notion that she can accomplish anything with determination. Nonetheless, having grown up in isolation, Mio yearns for a departure from her monotonous routine. Her desire for excitement comes to fruition upon meeting Sara, a member of an association that supervises numerous islands akin to Mio's homeland. Aided by Sara, Mio is eager to embark on academic and exploratory ventures. Nevertheless, the looming query persists: is Mio equipped to handle the forthcoming obstacles presented by school?