Hayama Katsuhiko
羽山 克彦
| Hayama Katsuhiko羽山 克彦 | |
| Hair | Brown, Curtained, Short |
| Eyes | Brown |
| Clothes | Glasses, Shirt, Suit, Trousers |
| Visual novels | Side character - Kono Aozora ni Yakusoku o Makes an appearance - Fossette ~Cafe au Le Ciel Bleu~ |
| Voiced by | Akiyama Itsuki |