黒部鉄郎

Born on December 30, 1989.
His nickname "Tetsu-chan" doesn't come from his name "Tetsurou," but instead comes from "tetsudou otaku (Railroad Otaku)". As his nickname suggests, he is a train enthusiast, and due to his slightly unusual personality, he tends to speak out in his classes, but he manages to calm down with the support of his classmate and best friend, Takachiho Makoto. He has feelings for Amagi Azusa, but since Azusa shows signs of having feelings for Makoto, Tetsurou is also jealous of him.