Project SEKAI COLORFUL STAGE! feat. Hatsune Miku has released Yoidore Shirazu / MEIKO (Alternate Vocal Full ver.), a new music video placing MEIKO alone on vocals for Kanaria's song. The video was published through the official Project SEKAI channel on September 5, 2026.
The release is part of the wider The Music Style collaboration, which pairs Project SEKAI characters with the visual and musical identities of selected Vocaloid songs. MEIKO is paired with Yoidore Shirazu, which has already been playable in Project SEKAI since April 2024.
Quick Summary
- Video title: Yoidore Shirazu / MEIKO (Alternate Vocal Full ver.)
- Japanese title: 酔いどれ知らず / MEIKO（アナザーボーカル Full ver.）
- Song: Yoidore Shirazu
- Japanese song title: 酔いどれ知らず
- New-version vocal: MEIKO
- Format: Alternate Vocal Full ver. music video
- Project: Project SEKAI COLORFUL STAGE! feat. Hatsune Miku
- Publication date: September 5, 2026
- Status: released
- Primary platform: YouTube
- Lyricist: Kanaria
- Composer: Kanaria
- MV illustration: 亞門弐形
- Illustration animation: お菊
- Additional creator involvement: 筆者 (@hissya) stated that they worked on the MV
- Exact @hissya X status: not independently verified
- 2026 context: The Music Style
- The Music Style start: September 3, 2026 at 12:00 PM JST
- Main campaign period: through September 13, 2026 at 11:59 PM JST
- Concept: Project SEKAI characters × Vocaloid-song worldviews
- Collaboration pairing: MEIKO × Yoidore Shirazu
- Related card: ★4 [Yoidore Shirazu] MEIKO
- Related live costume: Yoidore Shirazu
- Related gacha: Dressed in Melodies Gacha
- Login campaign: available
- Stamp mission: available
- Original Yoidore Shirazu singer: GUMI
- Original creator: Kanaria
- Original MV date: May 2, 2022
- Original illustration: LAM
- Original design: 雷雷公社
- Added to Project SEKAI: April 15, 2024
- SEKAI version: Vivid BAD SQUAD × MEIKO
- Virtual Singer version: GUMI
- Official 3DMV: available
- Related album: Vivid BAD SQUAD SEKAI ALBUM vol.3
- Yoidore Shirazu album position: track 7
- Album release date: July 9, 2025
- Game platforms: iOS and Android
- Genre: rhythm & adventure
- Developer / operator: SEGA and Colorful Palette
- Song status: not a new song addition; the 2026 MV is a new presentation of MEIKO's alternate vocal
- Related Amazon product: Vivid BAD SQUAD SEKAI ALBUM vol.3
- Verified Amazon ASIN: B0DTHD48TJ
MEIKO's Yoidore Shirazu and The Music Style
MEIKO Gets a Dedicated Full Version MV for Yoidore Shirazu
The new video features MEIKO as the sole vocalist and is officially presented as an Alternate Vocal Full ver. That distinguishes it from the existing SEKAI version in which MEIKO performs alongside Vivid BAD SQUAD.
Instead of simply making the alternate vocal available as audio, Project SEKAI gives MEIKO's version its own full music-video presentation through the game's official channel.
The release also does not represent a newly added rhythm-game song. Kanaria's Yoidore Shirazu has been available in Project SEKAI since 2024, making the September 2026 video a new visual and vocal expansion of existing material.
The Music Style Pairs MEIKO With Kanaria's Song
The Music Style is a collaboration that combines Project SEKAI characters with the visual or thematic worlds of selected Vocaloid songs.
SEGA previously revealed several pairings, including MEIKO × Yoidore Shirazu. The collaboration officially began on September 3, 2026 at 12:00 PM JST.
The accompanying Dressed in Melodies Gacha introduced six new ★4 members, including ★4 [Yoidore Shirazu] MEIKO, which comes with a Yoidore Shirazu live costume.
The pairing therefore extends beyond a card and outfit, with MEIKO also receiving a dedicated full-version music video.
A New Visual Production Brings Together Multiple Creators
The MV's production information credits 亞門弐形 for illustration and お菊 for illustration animation.
Its presentation leans heavily on red, black and white, combining bold typography, Japanese-inspired decorative motifs, sharp transitions and compositions centered around MEIKO.
The supplied source screenshot comes from video creator 筆者 (@hissya), who states in the post that they also worked on the MV.
Because the exact status URL for the @hissya post could not be independently recovered, this article does not fabricate a status ID or use an unverified X embed.
Yoidore Shirazu Has Been in Project SEKAI Since 2024
Yoidore Shirazu was not newly introduced to Project SEKAI in 2026. SEGA officially added the track to the rhythm game on April 15, 2024.
The game includes a SEKAI version performed by Vivid BAD SQUAD with MEIKO, along with a Virtual Singer version featuring GUMI.
Project SEKAI also released an official 3DMV for the Vivid BAD SQUAD × MEIKO performance. The 2026 Alternate Vocal Full ver. gives MEIKO a separate spotlight as both the vocal and visual focus.
The Vivid BAD SQUAD × MEIKO version also appears as track seven on Vivid BAD SQUAD SEKAI ALBUM vol.3.
Kanaria's Original Song Arrived With GUMI in 2022
Kanaria originally released Yoidore Shirazu with GUMI on May 2, 2022. Kanaria handled the music, with LAM providing the illustration and 雷雷公社 handling the original visual design.
The track later expanded through covers, rhythm games and commercial releases before becoming associated with Vivid BAD SQUAD × MEIKO inside Project SEKAI.
The 2026 Alternate Vocal Full ver. does not replace either the GUMI original or the SEKAI version. Instead, it gives MEIKO a solo interpretation built around The Music Style's new visual direction.
Why This Matters
1) MEIKO receives a full solo showcase
The SEKAI version pairs MEIKO with Vivid BAD SQUAD, while the new MV places her at the center of both the vocal and visual presentation.
2) The Music Style extends beyond cards and costumes
The MEIKO × Yoidore Shirazu pairing now spans a ★4 card, live costume and dedicated full-version MV.
3) The new visual treatment preserves the song's Kanaria identity
The production introduces different artwork and animation while remaining directly connected to Kanaria and GUMI's original song.
4) The MV connects the song's journey from 2022 through 2026
Yoidore Shirazu began as a Kanaria release in 2022, entered Project SEKAI in 2024, appeared on a SEKAI ALBUM in 2025 and received The Music Style treatment in 2026.
Game and Music Information
For now, the additional important information currently known includes:
- Yoidore Shirazu / MEIKO (Alternate Vocal Full ver.) is an official Project SEKAI video
- MEIKO is the sole vocalist in this version
- the video was published on September 5, 2026
- its primary platform is YouTube
- the song was written and composed by Kanaria
- the MV illustration is credited to 亞門弐形
- illustration animation is credited to お菊
- 筆者 (@hissya) states in the supplied source screenshot that they worked on the MV
- the exact status URL for that post has not been independently verified
- no X status ID has therefore been created or guessed
- the MV was released during The Music Style
- The Music Style began on September 3, 2026 at 12:00 PM JST
- its main campaign runs through September 13, 2026 at 11:59 PM JST
- the campaign combines Project SEKAI characters with Vocaloid-song worldviews
- MEIKO is paired with Yoidore Shirazu
- Dressed in Melodies Gacha introduced six new ★4 members
- one of them is ★4 [Yoidore Shirazu] MEIKO
- that card includes the Yoidore Shirazu live costume
- a The Music Style login campaign is also available
- a stamp mission is part of the campaign
- Kanaria originally released Yoidore Shirazu with GUMI on May 2, 2022
- LAM handled the original illustration
- 雷雷公社 handled the original design
- the song was added to Project SEKAI on April 15, 2024
- the SEKAI version is performed by Vivid BAD SQUAD and MEIKO
- the Virtual Singer version uses GUMI
- Project SEKAI has an official Yoidore Shirazu 3DMV
- the Vivid BAD SQUAD × MEIKO version appears on Vivid BAD SQUAD SEKAI ALBUM vol.3
- that album was released on July 9, 2025
- Yoidore Shirazu is track seven
- the album contains 12 SEKAI-version tracks
- Project SEKAI is available on iOS and Android
- the game is categorized as a rhythm & adventure title
- the Japanese service launched on September 30, 2020
- SEGA and Colorful Palette handle the game project
- the Japanese Google Play listing names SEGA CORPORATION as the app publisher
- the 2026 MV is not an announcement of a new rhythm-game song addition
- GUMI remains the vocalist of the original song
- the SEKAI version and Alternate Vocal Full ver. are separate versions
- Vivid BAD SQUAD SEKAI ALBUM vol.3 has a verified Amazon.co.jp listing
- the limited edition with goods uses ASIN B0DTHD48TJ
- official game information is available through the Project SEKAI Official Website
- the new MV is available through the Yoidore Shirazu MEIKO Alternate Vocal Full Version MV
- collaboration details are available through the SEGA The Music Style Announcement
- the MEIKO and Yoidore Shirazu pairing was revealed through the SEGA July 2026 Project SEKAI Announcement
- the 3DMV is available through the Yoidore Shirazu Vivid BAD SQUAD × MEIKO Official 3DMV
- the Android version is available through Project SEKAI on Google Play
- the original song is available through the Kanaria Official Yoidore Shirazu MV
- album information is available through Bushiroad Music Vivid BAD SQUAD SEKAI ALBUM vol.3
Closing
Yoidore Shirazu / MEIKO (Alternate Vocal Full ver.) expands The Music Style by giving MEIKO a dedicated video separate from the existing Vivid BAD SQUAD × MEIKO performance. Its new visual treatment adds another layer to Kanaria's song, which has been part of Project SEKAI since 2024.
For now, the release is centered on the alternate vocal full version and the wider The Music Style campaign. It does not represent a new September 2026 rhythm-game song addition, as Yoidore Shirazu has already been available in the game for more than two years.
- Project SEKAI / YouTube — Official Yoidore Shirazu MEIKO Alternate Vocal Full Version Music Video
- SEGA — Official The Music Style Collaboration, Dressed in Melodies Gacha, and Campaign Details
- SEGA — Official July 2026 Announcement Revealing the MEIKO and Yoidore Shirazu Pairing
- 4Gamer — Officially Sourced April 2024 Yoidore Shirazu Rhythm Game Addition Details
- Project SEKAI / YouTube — Official Yoidore Shirazu Vivid BAD SQUAD and MEIKO 3DMV
- Kanaria / YouTube — Original GUMI Yoidore Shirazu Music Video and Song Credits
- Bushiroad Music — Vivid BAD SQUAD SEKAI ALBUM vol.3 Track List and Product Information
- Google Play — Official Japanese Project SEKAI Store Page and App Information
