Overview
帝国少女 (Imperial Girl) is a VOCALOID track by producer R Sound Design, featuring Hatsune Miku, that originated as the title song of his 2017 album of the same name. R Sound Design handled every aspect of the production, composition, arrangement, lyrics, and the music video, giving the song a cohesive artistic vision. The lyrics paint a vivid portrait of urban malaise, weaving together terms like "decadent city" (頽廃的都市), "vaporwave," "makina," and "neon" as the protagonist, a zombie-like "imperial girl", wanders through a decaying metropolis, grappling with emotional numbness and a sense of belonging to a system she cannot escape.
The track first entered the rhythm game sphere in CHUNITHM NEW in March 2022 before arriving in maimai over three years later with the DX PRiSM PLUS update on August 22, 2025. For its maimai debut, the song received a longer edit (2:40 compared to the 2:16 CHUNITHM version), giving players more time with its moody, mid-tempo production at 118 BPM. The chart lineup spans Basic through Master, with the Expert chart designed by はっぴー and the Master chart (level 13, constant 13.3) designed by カマボコホルダー. As a niconico & VOCALOID category entry, the song joins a long lineage of user-generated vocaloid content that forms a core pillar of the maimai song library.
Videos
Charts
DX
BASIC
2(2)
141 notesDesigner: -|Tap 114Hold 10Slide 4Touch 9Break 4
ADVANCED
6(6)
251 notesDesigner: -|Tap 195Hold 15Slide 8Touch 27Break 6
EXPERT
9(9)
389 notesDesigner: はっぴー|Tap 283Hold 63Slide 26Touch 14Break 3
MASTER
13(13.3)
697 notesDesigner: カマボコホルダー|Tap 506Hold 28Slide 93Touch 49Break 21
Trivia
- 帝国少女 was originally released as the title track of R Sound Design's self-titled album in 2017, which served as the song's first commercial release.
- R Sound Design single-handedly produced the track, composing the music, writing the lyrics, arranging the instrumentation, and creating the music video.
- The song made its rhythm game debut in CHUNITHM NEW on March 17th, 2022, over three years before its maimai appearance.
- The maimai version uses a longer edit of the song (2:40) compared to the CHUNITHM edit (2:16), allowing the track's atmospheric buildup to breathe more.
- In the Asian version of maimai DX PRiSM PLUS, 帝国少女 was added later on December 5th, 2025, while the Japanese and international releases received it on August 22nd, 2025.
- The lyrics are rich with references to electronic music subgenres and urban aesthetics, chiptune, vaporwave, makina, and neon, weaving them into the narrative of a girl wandering through a techno-decayed city.
- The song's title 帝国少女 (Imperial Girl / Teikoku Shoujo) evokes a figure who is both regal and trapped, a princess of an empire she cannot leave.
- In CHUNITHM, the song's charts were designed by Aminohabakiri and Techno Kitchen, giving it a different charting identity across the two SEGA rhythm games.
FAQ
- Who composed 帝国少女 (Imperial Girl)?
- The song was composed, arranged, and written by R Sound Design, who also created the music video. Vocals are provided by Hatsune Miku.
- When was 帝国少女 added to maimai?
- 帝国少女 was added to maimai DX PRiSM PLUS on August 22, 2025 (December 5, 2025 in the Asian version).
- What difficulty is the Master chart of 帝国少女?
- The Master chart is level 13 with a difficulty constant of 13.3, designed by カマボコホルダー. It features 697 notes (506 Tap, 28 Hold, 93 Slide, 49 Touch, 21 Break).
- Who designed the charts for 帝国少女 in maimai?
- The Expert chart (level 9) was designed by はっぴー, and the Master chart (level 13) was designed by カマボコホルダー. Basic and Advanced charts have no credited designer.
- What is 帝国少女 about?
- The lyrics depict a wandering girl in a decaying urban landscape, described as a 'zombie' moving through a city of neon, vaporwave, and chiptune imagery. The song explores themes of emotional numbness, nostalgia, and being trapped within an oppressive system, the 'empire' of the title.
- Did 帝国少女 appear in other rhythm games before maimai?
- Yes, the song first appeared in CHUNITHM NEW on March 17, 2022, over three years before its maimai debut. The CHUNITHM version is a shorter edit (2:16) compared to the maimai version (2:40).
- What version of maimai is 帝国少女 in?
- 帝国少女 is part of maimai DX PRiSM PLUS, released on August 22, 2025, and is available in Japanese, International, and USA regions.
