Born Arabella de Leon, she was first given the name “Diana Guerrero” while being trained by Tiago Guerrero and believing that she was his biological daughter. As part of her mission ordered by Tiago to infiltrate the AFP and to kill Marcial, Diana went under the alias “Rhian Bonifacio”. When Rhian was suffering from amnesia, she was given the name “Dyosa” by Elai and the people of Barrio Sto. Francisco. She also carries the title “Uno”, being the top trainee of Tiago Guerrero’s terrorist youth camp.