Koji Koda (口こう田だ甲こう司じ, Kōda Kōji?) | Koji is a very shy and quiet person. As such, he rarely speaks and prefers using sign language to communicate with his classmates, so much so that Kyoka Jiro assumed that he was mute and was greatly surprised when Koji spoke. According to Fumikage Tokoyami, he is very good at keeping secrets. He also hates violence due to his kind-hearted nature. He appears to enjoy the company of animals.