A second-year student who appears in the special chapter of the manga, Junya Inui claims to be a vampire and is particularly familiar with the rules of the species. He becomes interested in Moka and reminds her that vampires cannot have relationships with other races. Tsukune is able to deduce his nature, stating he lacks the strength and pride of a real vampire, after he takes a punch. In fact, he is an onimodoki, creatures who often pretend to be powerful monsters and intimidate other races, but in reality are weak and frail.