A member of special forces Blood. He is generally the positive moodmaker of the group, but has little intellectual information on complex matters, similar to Kouta's personality. He knows a lot about fashion and idols. He is Italian as stated by Kouta and by name. Despite being the player and Nana's senior, he has yet to be able to use Blood Arts. Later he was finally able to use Blood Arts and killed Aragami, but as result he was effect by Red Rain and die at the end. Romeo's body was buried in Far East Branch i nthe garden.