Editing RahXephon (section)

==Setting==
The backstory of ''RahXephon'' is a fight against multi-[[dimension]]al invaders known as Mulians (known as {{nihongo|Mu|ムー|Mū}}). The Mu are visually indistinguishable from humans, however they carry a genetic marker called the "Mu phase" which turns their blood blue and causes some memory loss when they mature.

The story reveals that two Mu [[Floating city (science fiction)|floating cities]] appeared above Tokyo and [[Sendai]] around the [[2012 phenomenon|end of 2012]]. The ensuing conflict between Mu and humans escalated into [[nuclear warfare]], and the Mu enveloped Tokyo and the outlying suburbs within a spherical barrier resembling [[Jupiter]], referred by outsiders<!--unclear if this is in-universe--> as "Tokyo Jupiter" ("Tōkyō Jupita"). The barrier has a [[time dilation|time dilating]] effect, which causes time inside Tokyo Jupiter to slow down to one-fifth compared to the outside time, and allowed the Mu to secretly take control of Tokyo, using the area as their base of operations. The goal of the human forces outside of Tokyo Jupiter is to build up their strength to penetrate through and invade Tokyo Jupiter and stop the Mu while surviving their attacks.

Although ''RahXephon'' is part of the [[mecha]] genre of anime, its "mechas" are not mechanical. The mechas, used by the Mu and called Dolems, are made out of clay, like [[golem]]s. Each is bound to a certain Mulian; however, some are also bound to certain human hosts, called "sub-Mulians".

The dominant theme of ''RahXephon'' is the music changing the world. The Dolems are animated by a mystical force connected to music; most of the controlling Mulians appear to be singing. A Dolem attacks while singing, and sometimes the attack is the song itself. The RahXephon can also attack by having its pilot—the "instrumentalist"—sing a note. This unleashes force waves that cause massive destruction. Each Mulian Dolem has an Italian name referring to [[musical notation]]s, such as, ''Allegretto'', ''Falsetto'', or ''Vivace''. The ultimate goal of the RahXephon is to "tune the world." Izubuchi says the name ''RahXephon'' lacked a real meaning, but that he now explains it as composed of ''Rah'' as the origin of [[Ra]] according to Churchward, ''X'' as the unknown variable or X factor, and ''-ephon'' as a suffix for [[musical instrument|instrument]] from "[[Wiktionary:en:-phone|-phone]]".<ref>{{cite book |page=1|author=Momose Takeaki |author-link=Takeaki Momose |author2=Izubuchi Yutaka |title=RahXephon Vol. 3|date=September 29, 2004 |publisher=[[VIZ Media]] |location=San Francisco, CA |isbn=1-59116-428-1 }}</ref>