Romana is the sister of Ghetz. After Ghetz perished in helping Greco, the masked wrestler adopted Romana and they moved to El Nido. Romana worried that she was a burden on Greco, but Greco insisted otherwise. Romana then watched over Termina's cemetery while Greco traveled with Serge.
Greco's Japanese name is Gilbert, Ghetz's is Getz, and Romana's is Astrud. This is a reference to musician Stan Getz and Brazilian guitarist João Gilberto, who released an album called Getz/Gilbert in 1964. Astrud is the name of Gilberto's wife, who became famous after the album's release.