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Overview

ユビキリ (Yubikiri) is a maimai original song composed by Michiru Yamane, best known internationally for her work on the Castlevania series (particularly Symphony of the Night). It was added to maimai MURASAKi PLUS on August 10, 2017, Yamane's first contribution to the series in three years, following 火炎地獄 (Kaen Jigoku) for GreeN PLUS. The full production team includes lyricist Miho Orihara, vocalist Chiaki Ueno, arranger Ryou Takahashi, and guitarist Shouhei Ayabe, with the jacket illustration and music video handled by h.a.r.e. The song title translates to "pinky swear", the Japanese gesture of linking pinkies to seal a promise, and the lyrics revolve around making a vow to meet again as the seasons pass. Its mid-tempo pop-rock arrangement at 174 BPM carries a warm, nostalgic tone that complements the lyrical theme. ユビキリ is most famous in the maimai community for its Master chart, designed by Hiroyuki Harada (原田ひろゆき). The chart is an intricate medley that reuses slide and tap patterns from over 20 older maimai songs, spanning from the very first maimai release through GreeN PLUS and ORANGE PLUS, assembled into a single continuous playthrough. This makes it both a retrospective tour of early maimai charting and a uniquely demanding level 13 (constant 13.3) chart that rewards players familiar with the series' history.

Videos

Official PV

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Master chart

Open

Expert chart

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Expert chart

Open

Master chart

Open

Charts

STD

BASIC
4(4)
176 notesDesigner: -|Tap 162Hold 2Slide 3Break 9
ADVANCED
8(8)
368 notesDesigner: -|Tap 294Hold 38Slide 26Break 10
EXPERT
11+(11.6)
529 notesDesigner: rioN|Tap 376Hold 55Slide 88Break 10
MASTER
13(13.3)
642 notesDesigner: 原田ひろゆき|Tap 396Hold 13Slide 195Break 38

Trivia

  • ユビキリ was Michiru Yamane's return to maimai after a three-year gap, her previous contribution, 火炎地獄 (Kaen Jigoku), was added in maimai GreeN PLUS.
  • The song was added without prior announcement. It was initially unlocked by spending 8 million maiZENNY in Otohime's Room or by playing together with another player who already owned it. From maimai MiLK onward it became available by default.
  • Internally, the version field of ユビキリ was set to 18599, a value never reached during MURASAKi PLUS, which kept it hidden until the version 1.90 (MiLK) update (19000) made it unlockable for everyone.
  • The song's internal ID (236) falls between CYCLES (230) and MYTHOS (233), placing its creation in the GreeN PLUS era and suggesting it was developed long before its MURASAKi PLUS release.
  • The Master chart, designed by 原田ひろゆき (Hiroyuki Harada), is a 'greatest hits' medley that reuses slide and tap segments from over 20 older maimai songs including 源平大戦絵巻テーマソング, Everyday、カチューシャ, SHOW TIME, Turn around, 天国と地獄, ヘビーローテーション, コネクト, and 火炎地獄, among others.
  • Several segments in the Master chart are horizontally flipped versions of the original patterns, including those from Everyday、カチューシャ, SHOW TIME, Reach For The Stars, and 恋のヒメヒメぺったんこ.
  • The song lyrics are about making a pinky-swear (yubikiri) promise to meet again, with themes of cherishing everyday moments and growing up together.
  • Vocalist Chiaki Ueno delivers the lead vocals, with guitar work by Shouhei Ayabe, arrangement by Ryou Takahashi, and lyrics penned by Miho Orihara.
  • The jacket art and music video were created by illustrator h.a.r.e., who has contributed artwork to multiple maimai songs.
  • In the official music video, at the 0:31 mark, the female player scores an SS (the highest rank before ORANGE PLUS) while the male player scores a D (the lowest rank before ORANGE PLUS), a deliberate callback to older maimai rank systems.
  • The song's genre has changed across versions: it was 'ORIGINAL & JOYPOLIS' from MURASAKi PLUS through FiNALE, became 'ORIGINAL' in early maimai DX, and was moved to the 'maimai' category starting with DX PLUS.
  • The Basic chart was originally level 3 in the MURASAKi PLUS through FiNALE era, and was raised to level 4 from maimai DX onward. Similarly, the Advanced chart was level 7 through UNiVERSE and was raised to level 8 starting with FESTiVAL.
  • The Expert chart, designed by rioN, has undergone several level adjustments: it started at 10, was raised to 10+ in DX PLUS, and later to 11+ in UNiVERSE PLUS where it remains.

FAQ

Who composed the song ユビキリ for maimai?
ユビキリ was composed by Michiru Yamane (山根ミチル), the veteran composer best known for her work on the Castlevania series including Symphony of the Night. The full production credits include vocalist Chiaki Ueno, lyricist Miho Orihara, arranger Ryou Takahashi, and guitarist Shouhei Ayabe.
When was ユビキリ added to maimai?
ユビキリ was added to maimai MURASAKi PLUS on August 10, 2017. It was initially a hidden song unlocked by spending 8 million maiZENNY in Otohime's Room or playing with someone who already owned it, and became normally available starting with the maimai MiLK update.
What is unique about the Master chart of ユビキリ?
The Master chart (level 13, designed by 原田ひろゆき) is a medley that reuses slide and tap patterns from over 20 older maimai songs, including 源平大戦絵巻テーマソング, コネクト, 天国と地獄, and 火炎地獄. Many segments are horizontally flipped versions of the original patterns, creating a retrospective 'greatest hits' of early maimai chart design.
What does the title ユビキリ mean?
ユビキリ (yubikiri) means 'pinky swear' in Japanese, the gesture of linking pinky fingers to seal a promise. The song's lyrics are about promising to meet again as the seasons change and both people grow older.
Who designed the charts for ユビキリ?
The Expert chart was designed by rioN, and the Master chart was designed by Hiroyuki Harada (原田ひろゆき). The Basic and Advanced charts have no credited designer.
What is the BPM of ユビキリ?
ユビキリ has a BPM of 174.
Why was ユビキリ hidden in MURASAKi PLUS?
The song's internal version field was set to 18599, a value that was never reached during the MURASAKi PLUS update cycle. This kept it intentionally hidden until the MiLK update (version 19000), where it became normally unlockable. Its internal song ID (236) also suggests it was actually created during the earlier GreeN PLUS era.
Which maimai version category does ユビキリ belong to?
ユビキリ is a maimai original song. Its in-game genre was 'ORIGINAL & JOYPOLIS' from MURASAKi PLUS through FiNALE, then 'ORIGINAL' in early maimai DX, and has been categorized under 'maimai' since the DX PLUS update.

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