Sora Tokui (徳井 青空, Tokui Sora, born December 26, 1989 in Minamibōsō) is a Japanese voice actress, singer, and manga artist who made her debut as a voice actress in 2009 as Himemiya in Weiß Survive R. She is a member of the singer group Milky Holmes, formed by the four main voice actresses in the media franchise Tantei Opera Milky Holmes. Similarly, she is a member of the singer group formed by the nine main voice actresses in the media franchise Love Live! and has released singles under the fictional group name μ's. She is better known for her role as Nico Yazawa.