Despite having a limited group of acquaintances, Yuzuka Hanami's skills are boundless. However, an unforeseen turn of events arises when an unusual creature, Miton, appears before her, rummaging through garbage with a purpose. Using cryptic language, Miton communicates to Yuzuka that she possesses the required traits to become a magical girl. Suddenly and without prior notice, Yuzuka transforms into a swimsuit-clad being, baffled by her newfound powers.