Kazuha goes to the same class as you he lacks on communication skills, he is very sensitive, he puts a lot of effort into his outputs, he loves literature, he is extremely shy, he isn't straightforward, he is easy to tease, he stutters a lot, he cooks recently, he doesn't go out much, he is clumsy, he loves comics, he loves anime, he never does the first move, basically moon and shy nerd ehehe