Ruth (ルツ) is a supporting character in Planetarian: Storyteller of the Stars, voiced in Japanese by Minami Tsuda. The series' music includes "Planetarian: Chiisana Hoshi no Yume ED -- Sayaka Sasaki – Twinkle Starlight", "Planetarian: Chiisana Hoshi no Yume ED -- Sayaka Sasaki – Twinkle Starlight".
