Romeo Leoni is a character introduced in God Eater 2. A member of special forces Blood who comes from the Magnolia Compass orphanage. Romeo entered Blood as the second member, a year before Nana and the Protagonist. Despite being their senior, it is revealed that he has yet to be able to use Blood Arts and has not unlocked his Power of Blood.<br><br>
(Source: God Eater fandom)

Three years after the event in God Eater Burst, a new fatal pandemic called the Black Plague caused by red rain has struck the Far East area. Members of Special Forces Blood, an affiliate of Fenrir who reside in a mobile base, are sent to assist.