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Overview

ビターチョコデコレーション (Bitter Chocolate Decoration) is a Vocaloid track by producer syudou, featuring Hatsune Miku on vocals. The song originally appeared on syudou's 2019 album 最悪 (Saiaku) before being added to the maimai でらっくす PLUS songlist on January 23, 2020, as part of the niconico & VOCALOID genre category. With a brisk tempo of 174 BPM and a polished pop-rock arrangement, the track balances infectious melodic hooks with lyrics that critique social conformity, the titular "bitter chocolate decoration" serving as a metaphor for the pleasant exterior people craft to mask their genuine emotions and desires. The music video was produced by illustrator and animator ヤスタツ (Yasutatsu), whose visual style matches the song's slick yet acerbic tone. In the maimai community, the song is notable for its MASTER chart's difficulty history: it launched at level 13 in でらっくす PLUS, one of the higher ceilings at the time, before being revised down to 12+ starting with the Splash update, a recalibration that reflects the evolving standards of the game's difficulty curve. The song later crossed over to SEGA's other rhythm title オンゲキ, appearing in オンゲキ R.E.D. during a limited-time event in early 2021.

Videos

Official PV

Open

Master chart

Open

Expert chart

Open

Charts

DX

BASIC
4(4)
170 notesDesigner: -|Tap 126Hold 22Slide 4Touch 15Break 3
ADVANCED
7(7)
360 notesDesigner: -|Tap 290Hold 23Slide 21Touch 16Break 10
EXPERT
9+(9.6)
499 notesDesigner: サファ太|Tap 374Hold 86Slide 14Touch 17Break 8
MASTER
12+(12.9)
829 notesDesigner: ロシェ@ペンギン|Tap 619Hold 79Slide 92Touch 23Break 16

Trivia

  • ビターチョコデコレーション was first released on syudou's 2019 album 最悪 (Saiaku, lit. "worst"), which collects several of his early Vocaloid productions.
  • The music video was produced by ヤスタツ (Yasutatsu), a Japanese illustrator and animator known for music video work across the Vocaloid scene.
  • The MASTER chart originally launched with a level rating of 13 in maimai でらっくす PLUS, but was reclassified to 12+ from maimai でらっくす Splash onward, a relatively rare downward difficulty adjustment in the series.
  • The song reached the Chinese version of maimai on December 24, 2020, nearly 11 months after its Japanese and international debut.
  • In オンゲキ R.E.D., the song was available during the limited Hotch-Potch☆鍋パーティー event (January 7–27, 2021), unlockable by scoring 400% total damage during the event period. It became permanently available by default on February 4, 2021.
  • The lyrics include the explicit interjection "F.U.C.K.Y.O.U", a moment of unfiltered frustration that breaks the song's otherwise restrained tone of social pleasantry and self-policing.
  • The EXPERT chart was designed by サファ太 (Safata), and the MASTER chart by ロシェ@ペンギン (Rocher@penguin), both regular maimai chart contributors with distinctive style signatures.
  • The song's title translates directly to "Bitter Chocolate Decoration," reflecting the lyrical theme of coating raw truth in a bittersweet, decorous surface for social consumption.

FAQ

Who composed Bitter Chocolate Decoration?
The song was composed, arranged, and written by syudou, a Vocaloid producer who later gained mainstream recognition.
What version of maimai added ビターチョコデコレーション?
The song was added in maimai でらっくす PLUS (maimai DX PLUS), released on January 23, 2020.
Who sings ビターチョコデコレーション?
The vocals are performed by Hatsune Miku (初音ミク), the Crypton Future Media Vocaloid voicebank.
What difficulty level is the MASTER chart of Bitter Chocolate Decoration?
The MASTER chart is rated level 12+ (difficulty constant 12.9). It originally debuted at level 13 in maimai でらっくす PLUS before being revised down to 12+ from maimai でらっくす Splash onward.
Who designed the EXPERT and MASTER charts for ビターチョコデコレーション?
The EXPERT chart was designed by サファ太 (Safata), and the MASTER chart was designed by ロシェ@ペンギン (Rocher@penguin).
Does Bitter Chocolate Decoration appear in other rhythm games?
Yes, the song also appears in SEGA's オンゲキ (ONGEKI), debuting in オンゲキ R.E.D. during the Hotch-Potch☆鍋パーティー event in January 2021 before becoming permanently available.
What is the song ビターチョコデコレーション about?
The lyrics explore themes of social conformity, emotional repression, and the tension between maintaining a polite facade and expressing one's true feelings. The "bitter chocolate decoration" is a metaphor for this sweet-coated but bitter social performance.
What BPM is ビターチョコデコレーション?
The song has a BPM of 174.