Overview
ないせんのうた (Naisen no Uta) is an unusual entry in the maimai song library: a corporate promotional theme for Naisen Cloud (ナイセンクラウド), an IP/PBX telephone service from ITALL, Inc. Rather than a VOCALOID track or licensed pop song, the piece was commissioned directly as a marketing jingle, making it a curious artifact of maimai's willingness to feature B2B-branded content during the MURASAKi PLUS era.
The song was composed by Futoshi Arai (あらいふとし), who also co-wrote the lyrics with the Naisen team. Arrangement credits include Arai alongside Jun Miyajima (ミヤジマジュン), with vocals performed by momoco. The accompanying animation was handled by ナイセン中の人M. Clocking in at a brisk 184 BPM and a 2:20 runtime, the track carries an energetic, carnival-like pop energy built around a relentless stream of telephone-themed wordplay.
Its title is a dense cluster of puns: ないせん (naisen) simultaneously evokes 内線 (internal line), 配線無い線 (wireless/no wiring), and ナイスセンス (nice sense). The lyrics lean into this polysemy with overlapping layers of phone-operator language and playful onomatopoeia, all capped by the emphatic refrain "机バンバンバンだぞ！" (a desk-banging threat delivered when someone forgets something important). The chorus lines "変わっTEL? 困っTEL? へんてこなやつと思っTEL?" insert telephone puns (TEL sounding like "teru" and "tel") directly into conversational Japanese.
In maimai, the song has seen notable chart level adjustments across versions. Originally debuting with a Level 1 EASY chart containing 99 notes, the highest note count of any Level 1 chart in the game, it was restructured during the transition to the DX era. The current Standard charts (Basic 5, Advanced 6, Expert 10+, Master 12+) reflect multiple rounds of rebalancing by SEGA. The Expert chart was designed by rioN, and the Master chart by はっぴー (Happy). In Asian English releases, the title is romanized as NAISEN NO UTA.
Videos
Charts
Trivia
- ないせんのうた was commissioned as an official theme song for Naisen Cloud (ナイセンクラウド), a cloud-based IP/PBX telephone service developed by ITALL, Inc., making it a rare instance of a corporate B2B jingle appearing in a consumer rhythm game.
- The title is a multi-layered pun: 内線 (internal line), 配線無い線 (no wiring), and ナイスセンス (nice sense) all overlap in the pronunciation "naisen."
- The lyrics were co-written by composer Futoshi Arai and the Naisen company team, blending telephone-operator vocabulary with schoolyard-style repetition and wordplay.
- The animation for the original promotional video was handled by ナイセン中の人M (Naisen no Naka no Hito M), whose role is credited as "picture/video" in the production credits.
- The track originally had a Level 1 EASY chart with 99 notes, the highest note count of any Level 1 chart in maimai history. This chart was removed when the game transitioned to the DX format.
- The song's chart levels have been adjusted multiple times since its debut: starting at 4/6/9/11 (B/A/E/M) in MURASAKi PLUS, moving through 4/6/9+/11+ in DX PLUS, and eventually settling at 5/6/10+/12+ from FESTiVAL onward.
- A title (称号) called ナイセン団 can be earned by playing both ないせんのうた and 電話革命ナイセン in a single credit.
- In Asian English versions of maimai, the song title is romanized as NAISEN NO UTA and the artist as naisen - momoco-.
- The song's lyrics repeatedly threaten "机バンバンバンだぞ！" (banging on the desk!), which became a memorable meme-like phrase associated with the track among maimai players.
- The Master chart (12.7, designed by はっぴー) features dense Slide patterns interwoven with Break notes, a hallmark of はっぴー's design style for mid-to-upper-level charts.
FAQ
- Who composed ないせんのうた?
- The song was composed by Futoshi Arai (あらいふとし), who also co-wrote the lyrics with the Naisen team. Arrangement was handled jointly by Arai and Jun Miyajima (ミヤジマジュン).
- What is ないせんのうた about?
- It is a corporate theme song for Naisen Cloud, a cloud-based telephone service. The lyrics are built on telephone-themed wordplay, using homophones for "internal line," "no wires," and "nice sense", and feature a playful desk-banging refrain (机バンバンバンだぞ).
- When was ないせんのうた added to maimai?
- The song was added to maimai MURASAKi PLUS on December 5, 2017. It has remained in the game through subsequent DX versions with periodic level adjustments.
- Who sings ないせんのうた?
- Vocals are performed by momoco, credited as part of the artist name "ナイセン - momoco-" in the game.
- What company produced ないせんのうた?
- The song was produced by ITALL, Inc. (アイティオール株式会社), the company behind the Naisen Cloud telephone service. This makes it a rare corporate B2B promotional track in the maimai song catalog.
- What is notable about the charts for ないせんのうた?
- The original MURASAKi PLUS EASY chart (Level 1) had 99 notes, the highest count of any Level 1 chart in maimai, that chart was removed in the DX transition. The Master chart, designed by はっぴー, sits at Level 12+ (constant 12.7) and features dense Slide-and-Break patterns. The Expert chart was designed by rioN.
- What does the title ないせんのうた mean?
- The title is a triple pun: ないせん can mean 内線 (internal telephone line), 配線無い線 (wireless / no wiring), and phonetically resembles ナイスセンス (nice sense). The phrase is also the name of the telephone service (Naisen Cloud), so the title can be read as "The Naisen Song."
