Ruby is a first-year Uranohoshi student as well as Dia's timid younger sister, who has long since dreamed of becoming an idol. She has androphobia (a fear of men), as she has never talked to anyone male outside of her own father. In the anime, her shyness is increased so she enters in panic when she is touched by anyone she is not used to regardless of sex, being only comfortable around Dia and Hanamaru at the start of the anime. Her catchphrase is "Ganbaruby!" Ruby has the highest voice in the group. Her voice is nasally and has a touch of childness to it becoming pouty in some situations. Her range can be difficult so please don't strain! :)