[2] The word Xenoglossia in the title is a term taken from Greek for using a language (talking, reading or writing) that is completely unknown to the user.Haruka Amami, initially unsure of herself, passes an audition to be a singing idol and she is sent to Tokyo to start a career in the entertainment.She does not know that the agency that recruited her is actually a front for a big task force called Mondenkind which uses the IDOLS to save the Earth from falling fragmented pieces of the Moon.IDOLs are robots used to destroy "Drop"s, remnants of the destruction of the Moon 107 years previous during an event called the "Lost Artemis".The Shuko, mentioned only in passing by a side character, was to become the main focus of the show, however a budget cut meant that a core element to the overarching story arc was left out.by Miyuki Hashimoto and the second opening theme is "Zankoku yo Kibō to Nare" (残酷よ希望となれ) by Aira Yūki.A manga adaptation was serialized in Kadokawa Shoten's Comp Ace between volumes 12 and 23 sold between February 26, 2007 and January 26, 2008.