The comedy follows Yuzuka Hanami, a young girl who has few friends but who can do anything. One day, Yuzuka gets accosted by a strange creature named Miton who is digging through a trash dump. Miton tells Yuzuka, “you have the makings of a magical girl” and seems extremely suspicious. When Yuzuka is suddenly transformed into a magical girl, she’s wearing a bathing suit.
主角葉波柚香是一個無所不能的少女,然而她卻並沒有朋友。一天她在垃圾場看到了神秘生物米咚,並被告知「有魔法少女的素質」,突然就變成了魔法少女。但是不知為何,變身後穿的是泳裝,並且從此柚香開始了跟米咚的奇妙生活…。