Overview
おべんきょうたいむ (Obenkyōtaimu) is a high-energy original song by litmus* that swept the maimai DX Award at SEGA's FEAT CONTEST 2024. The title fuses お勉強 (study) with タイム (time), and the track delivers exactly what that name promises: a whirlwind tour of the joy, chaos, and overwhelm of learning. At 165 BPM, it rides a glitch-pop arrangement punctuated by synthetic vocal chops, frantic beat drops, and a chorus that gleefully drags the phrase "お勉強たのしいなああああああああ…" into absurdly long territory, a gag that became a self-referential unlockable title in the game itself.
Vocals are handled by Rei Adachi (足立レイ), with lyrics penned by MisomyL and a music video crafted by KeiuO. The lyrics ricochet between genuine curiosity ("Why is looking at animals = cute?") and existential panic, weaving in the programming error "ArrayIndexOutOfBoundsException" as a metaphor for cognitive overload. The song was submitted to FEAT CONTEST 2024, SEGA's open-call competition for original maimai tracks, and earned the maimai DX Award, securing its place in the series.
Debuting in maimai でらっくす CiRCLE on October 3, 2025, the song was first locked behind the FEAT CONTEST Area, requiring players to accumulate 400 km of in-game travel distance to unlock. A general unlock followed on January 9, 2026. Its MASTER chart, laid out by はっぴー (Happy), crosses the 1000-note milestone with 1006 total notes at a level 14.1 constant, while the EXPERT chart by サファ太 (Safata) packs a dense 65 Break notes into its level 12 configuration, a notable trait for its difficulty tier.
Videos
Charts
DX
BASIC
5(5)
252 notesDesigner: -|Tap 211Hold 13Slide 7Touch 13Break 8
ADVANCED
7+(7.6)
368 notesDesigner: -|Tap 312Hold 16Slide 6Touch 26Break 8
EXPERT
12(12.4)
653 notesDesigner: サファ太|Tap 410Hold 103Slide 56Touch 19Break 65
MASTER
14(14.1)
1006 notesDesigner: はっぴー|Tap 626Hold 96Slide 127Touch 66Break 91
Trivia
- おべんきょうたいむ won the maimai DX Award at FEAT CONTEST 2024, SEGA's annual open-submission competition that invites composers, vocalists, and video creators to pitch original songs for inclusion in the maimai series.
- The title is a playful compound of お勉強 (obenkyō, study) and タイム (taimu, time). The lyrics dance between childlike wonder at discovery and the panicked feeling of information overload.
- A programming reference appears mid-song: 'ArrayIndexOutOfBoundsException', a common runtime error in Java and other languages, is used as a lyrical device to convey the sense of a mind exceeding its capacity.
- The unlockable in-game title associated with the song stretches 'お勉強たのしいな' (study is fun) followed by a massive string of 'あ' repetitions, mirroring the song's own drawn-out vocal climax in the chorus.
- Lyrics were written by MisomyL, who has contributed to other rhythm-game vocal tracks, while the music video was produced by KeiuO.
- The MASTER chart by はっぴー (Happy) contains 1006 notes, placing it among the more demanding 14-level charts in CiRCLE. Its 127 Slide and 66 Touch notes create dense, multi-layered patterns that test both reading and dexterity.
- The EXPERT chart, designed by サファ太 (Safata), features 65 Break notes out of 653 total, roughly 10% of its note count, an unusually high proportion that rewards precise timing.
- In the Asian version of maimai DX CiRCLE, the song became unlockable starting February 13, 2026, later than its Japanese release window.
FAQ
- Who composed おべんきょうたいむ?
- The song was composed and arranged by litmus*, with lyrics by MisomyL and vocals performed by Rei Adachi (足立レイ). The music video was created by KeiuO.
- What does おべんきょうたいむ mean?
- The title is a portmanteau of お勉強 (obenkyō, study) and タイム (taimu, time), literally 'study time.' The lyrics explore the exhilarating and overwhelming sensation of learning new things, blending childlike curiosity with computer-science-themed panic.
- When was おべんきょうたいむ added to maimai DX?
- It debuted in maimai でらっくす CiRCLE on October 3, 2025. It was initially unlockable exclusively through the FEAT CONTEST Area by reaching 400 km of travel distance, then became generally unlockable on January 9, 2026.
- What difficulty levels do the charts of おべんきょうたいむ have?
- The DX charts span Basic (level 5), Advanced (level 7+, constant 7.6), Expert (level 12, constant 12.4), and Master (level 14, constant 14.1). The Master chart contains 1006 notes.
- Who designed the charts for おべんきょうたいむ?
- The Expert chart was designed by サファ太 (Safata) and the Master chart by はっぴー (Happy). Basic and Advanced charts do not carry a credited designer.
- How do you unlock おべんきょうたいむ?
- During its FEAT CONTEST Area event window (October 3, 2025 – January 8, 2026), players needed to accumulate 400 km of total travel distance in the FEAT CONTESTちほー to unlock the song. After January 9, 2026, it became available through general unlock methods. In Asian regions, the unlock started February 13, 2026.
- What is FEAT CONTEST 2024?
- FEAT CONTEST is a SEGA-hosted competition that invites songwriters, vocalists, and video creators to submit original works for potential inclusion in maimai DX. おべんきょうたいむ won the maimai DX Award at FEAT CONTEST 2024, earning its official spot in the game.
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