Overview
まっすぐ→→→ストリーム！ (Massugu →→→ Stream!) is a high-energy original song ported to maimai でらっくす BUDDiES PLUS from SEGA's rhythm game ONGEKI SUMMER. Composed by Yuuki Honda of the music circle Arte Refact, with lyrics by Erica Masaki, the track is performed by Miho Okasaki in character as Chinatsu Hinata (日向 千夏), one of the main heroines of the ONGEKI series. Classified under the genre label "OTAKU HAPPYCORE," the song bursts with upbeat synth melodies, cheerful call-and-response vocals, and a relentless 184 BPM tempo that mirrors its lyrics about charging forward optimistically. The title's three arrows (→→→) visually reinforce the theme of momentum and forward motion, a motif that carries through both the music and the lyrics. In maimai, the song arrives as part of the ONGEKI & CHUNITHM crossover category, bridging the three SEGA rhythm-game franchises. Its MASTER chart (level 13, constant 13.5), designed by 鳩ホルダー (Hato holder), features a dense 960-note layout with 140 Slide notes, while the EXPERT chart (level 10+, constant 10.6) by サファ太 (Safata) offers a demanding 600-note intermediate challenge.
Videos
Charts
DX
BASIC
4(4)
232 notesDesigner: -|Tap 178Hold 11Slide 8Touch 23Break 12
ADVANCED
7(7)
400 notesDesigner: -|Tap 318Hold 15Slide 14Touch 35Break 18
EXPERT
10+(10.6)
600 notesDesigner: サファ太|Tap 415Hold 63Slide 29Touch 23Break 70
MASTER
13(13.5)
960 notesDesigner: 鳩ホルダー|Tap 626Hold 45Slide 140Touch 49Break 100
Trivia
- まっすぐ→→→ストリーム！ debuted in ONGEKI SUMMER at launch as part of the chapter 「いきなりシューターフェス決勝！」. It was one of the first three original ONGEKI songs that did not require unlocking in that game, alongside トリドリ⇒モリモリ! Lovely fruits☆ and 夜明けのストリング.
- A long version (full-size arrangement) and an instrumental version of the song appear on the ONGEKI Vocal Collection 06 soundtrack, alongside the in-game size version.
- In CHUNITHM NEW, the song was unlockable from March 24, 2022 via the ONGEKI MAP 14. From CHUNITHM SUN onward, it became available by default in both Japanese and Asian versions.
- The song received a LUNATIC chart in ONGEKI bright MEMORY on July 26, 2022, unlockable by scoring 822% total damage across its regular charts. That chart later became available by default from July 26, 2023.
- A WORLD'S END chart (狂☆2 difficulty) was added in CHUNITHM SUN at launch, designed with the curious author name 「千夏ストリーム！」.
- In maimai DX, the song was added on August 30, 2024 for Japan and international regions. The Asian version followed on November 29, 2024, and the Chinese version arrived on the 舞萌DX 2025 cabinet on November 5, 2025.
- Playing the song once in maimai DX awards the title 「千夏ふるぱわーーー！」 (Chinatsu Full Power!!).
- The lyrics are written entirely in Japanese and feature playful onomatopoeia (ごろにゃーん, ばびゅーん) and energetic interjections, reflecting Chinatsu's bright, cheerful personality from the ONGEKI series.
FAQ
- Who composed Massugu →→→ Stream!?
- Massugu →→→ Stream! was composed and arranged by Yuuki Honda of the music circle Arte Refact. The lyrics were written by Erica Masaki.
- Who sings Massugu →→→ Stream!?
- The song is performed by Miho Okasaki (岡咲 美保) as the voice of Chinatsu Hinata (日向 千夏), a character from SEGA's ONGEKI series.
- What genre is Massugu →→→ Stream!?
- The song's in-game genre label is 'OTAKU HAPPYCORE,' an upbeat, high-energy style fitting the character's cheerful personality. In maimai DX it appears under the ONGEKI & CHUNITHM category.
- Which game did Massugu →→→ Stream! first appear in?
- The song debuted in ONGEKI SUMMER, and was later ported to CHUNITHM NEW and maimai でらっくす BUDDiES PLUS.
- When was Massugu →→→ Stream! added to maimai DX?
- It was added to maimai でらっくす BUDDiES PLUS on August 30, 2024 in Japan and international regions, with Asian and Chinese releases following later that year and in 2025 respectively.
- Who designed the MASTER chart for Massugu →→→ Stream! in maimai DX?
- The MASTER chart (level 13, constant 13.5) was designed by 鳩ホルダー (Hato holder), and features 960 total notes with a notably high count of 140 Slide notes. The EXPERT chart was designed by サファ太 (Safata).
- What is the meaning of the title Massugu →→→ Stream!?
- Massugu (まっすぐ) means 'straight' or 'directly' in Japanese, and the three arrows (→→→) reinforce the idea of moving forward without hesitation. The lyrics express cheerful determination and optimism about facing each day.
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