Overview
Unwelcome School is an instrumental BGM track composed by Mitsukiyo (ミツキヨ) for the mobile RPG Blue Archive (ブルーアーカイブ). It arrived in maimai でらっくす CiRCLE on September 18, 2025, as part of the game & variety (ゲーム＆バラエティ) category. Within Blue Archive, the piece is the unofficial theme of Problem Solver 68 (便利屋68), a four-member student group from Gehenna Academy comprising Rikuhachima Aru, Asagi Mutsuki, Onikata Kayoko, and Ikusaba Haruka. The BGM frequently accompanies the group's comedic misadventures, and composer Mitsukiyo himself has described it as "the magical BGM that often plays when Rikuhachima Aru appears." Its driving 180 BPM melody and catchiness propelled it beyond Blue Archive into internet meme culture, appearing in "Let's Go Meme" videos and the "Nori-nori [Something] Series" compilations. The maimai DX chart set spans all five difficulties, with the Re:MASTER chart (level 14, constant 14.1, designed by はっぴー) packing 960 notes, the densest in the set, and the MASTER chart (level 12) designed by 緑風 犬三郎.
Videos
Charts
DX
BASIC
4(4)
204 notesDesigner: -|Tap 172Hold 9Slide 4Touch 10Break 9
ADVANCED
7(7)
311 notesDesigner: -|Tap 258Hold 12Slide 6Touch 28Break 7
EXPERT
10+(10.6)
479 notesDesigner: Luxizhel|Tap 326Hold 76Slide 48Touch 16Break 13
MASTER
12(12.2)
745 notesDesigner: 緑風 犬三郎|Tap 566Hold 29Slide 95Touch 33Break 22
Re:MASTER
14(14.1)
960 notesDesigner: -|Tap 706Hold 17Slide 152Touch 37Break 48
Trivia
- Unwelcome School originated as environmental BGM in Blue Archive, not a vocal track, it has no lyrics.
- The song is inseparable from the Problem Solver 68 (便利屋68) faction. Composer Mitsukiyo remarked on Twitter that it functions as 'the magical BGM that plays when Rikuhachima Aru appears.'
- Outside of Blue Archive, Unwelcome School became a widespread internet meme thanks to its energetic, loop-friendly structure. Fan edits under the 'Let's Go Meme' and 'Nori-nori [Series]' banners helped it reach audiences who never played the source game.
- The maimai DX Re:MASTER chart (level 14, constant 14.1) was designed by はっぴー (Happy), a veteran chart designer known for dense, pattern-heavy arrangements across multiple SEGA rhythm games. It contains 960 total notes with 152 Slide and 48 Break notes.
- The MASTER chart (level 12, constant 12.2) was designed by 緑風 犬三郎 (Midorikaze Inusaburō), featuring 745 notes, while the EXPERT chart (level 10+, constant 10.6) was designed by Luxizhel with 479 notes.
- Unwelcome School appears in all three major SEGA arcade rhythm game franchises: maimai (CiRCLE), CHUNITHM (X-VERSE), and オンゲキ (Re:Fresh), making it a cross-title collaboration staple.
- In CHUNITHM, the ULTIMA difficulty chart was a four-way collaboration, each 20-to-30-second segment of the song was designed by a different charter: そらいろカリン, じゃこレモン, アミノハバキリ, and ロシェ@ペンギン.
- The maimai version features eight unlockable titles (称号) referencing Problem Solver 68's mannerisms, including '一日一惡' ('One Evil Per Day'), the stuttering exclamation 'なななな、なっ、何ですってーーーーーー！！！？？？', and '便利屋68' unlocked via FULL COMBO.
FAQ
- Who composed Unwelcome School?
- Unwelcome School was composed by Mitsukiyo (ミツキヨ), a Korean musician best known for composing the soundtrack for the mobile RPG Blue Archive (ブルーアーカイブ).
- What game is Unwelcome School from?
- Unwelcome School originates from Blue Archive (ブルーアーカイブ), where it plays as background music during scenes featuring the Problem Solver 68 (便利屋68) student group.
- When was Unwelcome School added to maimai?
- It was added to maimai でらっくす CiRCLE on September 18, 2025, at the version's launch. The Re:MASTER chart was available on the same day.
- What difficulty is Unwelcome School's Re:MASTER chart?
- The Re:MASTER chart is level 14 with a difficulty constant of 14.1. It contains 960 total notes (706 Tap, 17 Hold, 152 Slide, 37 Touch, 48 Break) and was designed by はっぴー (Happy).
- Does Unwelcome School have lyrics?
- No. Unwelcome School is an instrumental BGM with no lyrics. The original track from Blue Archive is purely musical.
- Who designed the maimai DX charts for Unwelcome School?
- The EXPERT chart was designed by Luxizhel, the MASTER chart by 緑風 犬三郎 (Midorikaze Inusaburō), and the Re:MASTER chart by はっぴー (Happy). Basic and Advanced charts do not have a credited designer.
- What other rhythm games feature Unwelcome School?
- Unwelcome School also appears in CHUNITHM X-VERSE (since its launch) and オンゲキ Re:Fresh (since August 7, 2025), making it one of the few tracks shared across all three SEGA arcade rhythm game lines.
- Why is Unwelcome School associated with internet memes?
- The track's driving, loop-friendly 180 BPM melody and comedic in-game context made it a popular choice for fan video edits, spawning the 'Let's Go Meme' and 'Nori-nori [Series]' formats on social media.
External Links
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