Hiroshi was first introduced as someone who gets the same rank in school as Kusuo. Someone who has boring name, common appearance, average in brains and body and has no single quality to stand out. Hiroshi has his own circle of friends, a chubby guy and a short glasses guy.
Hiroshi is from a family of four, his father is a salaryman and his mother is a housewife. He has a younger brother who goes to a swimming school. He is described as a person with a normal common sense.
|v · e||2nd Year|
|Class 2-:||Kihachi Bunta · Nishi Soujirou · Sugiyama Haruo · Tanaka Ichirou|
|Class 2-:||Itano Yoriko · Ooshima Yuuji · Oohori Kouichi · Satou Hiroshi · Shinoda Takeru · Shinya Nakanishi · Takayuki Maeda · Toritsuka Reita|
|Class 2-:||Aiura Mikoto · Akechi Touma · Hairo Kineshi · Kaidou Shun · Kuboyasu Aren · Mera Chisato · Murata Shuuji · Nendou Riki · Saiki Kusuo · Saiko Metori · Sawakita · Takahashi · Teruhashi Kokomi · Yokota Jaga · Yumehara Chiyo · Zolbe Kageyukouji Saberlight|
|Class 2-:||Haruno Yasuo · Hotei Tomotaka · Tanihara Kenji|
|Class 2-:||Kumi Kouji · Matsuda Ippei · Mikami Aiko · Mishima Nobuaki|