Characters » Uno
She is the first Number ever to be created and Scaglietti's personal secretary. With a calm and collected personality, acting for Scaglietti's benefit is always her utmost priority. Uno is greatly respected by her sisters due to her seniority and none of them will disobey a direct order from her. She is the one who understand Scaglietti the most and will always support him in both actions and thoughts.