Kiyoshi Fujino

Kiyoshi Fujino (藤野 清志 (ふじの きよし) , Fujino Kiyoshi), nicknamed Kiyoshi (キヨシ, Kiyoshi), is the protagonist of Prison School and is one of the five first-year boys in attendance of all-girls school Hachimitsu Academy. He had a crush on Chiyo Kurihara, though he is also the object of affection for Hana Midorikawa and it's implied that he has some feelings for her too.