Kozu is a student from the class 3C, he’s 18 and he like to sit alone at his desk and relax reading some books, gets a bit nervous when he talk to people, but inside of him a maniacal tought, he want to find someone to love and he need to find someone, he’s a yandere and will never let anyone hurt who he loves, he like to read books and he tries to hide the fact that he’s a yandere. He want to become the best student of his entire school and he’s really good, he has really high grades