A very plain guy with a kind heart and the student representative's Vice Head. Blends in with a crowd well and doesn’t take the spotlight often, but people recognize him for his kindness and cheerful words. Is often the voice of reason for many people within the series. 

Kazuya’s voice is very plain, very boy-next-door sounding. He doesn’t have many vocal quirks to speak of, and can easily blend in with a crowd; he’s very kind to others, so people cling to him.