Mahiro Muto

武藤 まひろ
Kazuki039s sister and first year student at Kazuki039s school. Ditzy and constantly cheerful Mahiro seems to lack common sense and sees nothing wrong with things like letting her brother borrow her school gym clothes. Her quirks and personality are so similar to her brother039s that no one ever doubts they039re related despite the fact that they don039t resemble each other. She secretly wishes that Tokiko and Kazuki will get married so that Tokiko will be her new sister.