Ikushima Satoshi

Satoshi was a former student at Houka Gakuen. Inspired by his former teacher Takatsuki Sawako to become a teacher, now he starts to teach at Houka Gakuen. Satoshi is the only male teacher at the school because former male teachers either retired or transferred and he learning that his old high school is now become a all girl school. (The Protagonist's image is from Shibasoft "Mama x Kano" official website illustration page)