{"rewrite":{"id":"r_ff6c3cbc1fb69410da1fb2db","clusterId":"c_f5594bd497a949c5e9c6e311","slug":"project-sekai-releases-four-character-solo-2d-mvs-in-four-days","model":"deepseek-v4-flash","headline":"Project Sekai Releases Four Character Solo 2D MVs in Four Days","summary":"Sega and Colorful Palette released four character solo 2D music videos on the official Project Sekai YouTube channel between September 5 and 8, 2026. Each video is a full-size solo performance of a Vocaloid song sung by a single character from the iOS and Android rhythm and adventure game Project Sekai: Colorful Stage! feat. Hatsune Miku.\n\nMEIKO sings \"Yoidore Shirazu\" by Kanaria in the September 5 video. Hinomori Shizuku, voiced by Rina Honizumi, sings \"Romeo and Cinderella\" by doriko in the September 6 video. Hoshino Ichika, voiced by Ruriko Noguchi, sings \"Mosaic Roll (Reloaded)\" by DECO*27 in the September 7 video. An Shiraishi, voiced by Jena Sumi, sings \"PaIII.SENSATION\" in the September 8 video.\n\nAll four songs are also playable as rhythm game tracks. Each one is unlocked by exchanging a Music Card at the in-game Music Shop. The four announcements were all published by Sega on September 8, 2026.","whyItMatters":"The four press releases all went out on September 8 but describe videos released on four separate days, September 5 through 8, each starring a different character and a different Vocaloid producer.","webCardHtml":"\u003cp\u003eSega and Colorful Palette published four separate announcements on September 8, 2026, covering character solo 2D MVs released on the official Project Sekai YouTube channel between September 5 and 8. Each video is a full-size solo performance of a Vocaloid song, and each song is also available as a rhythm game track by exchanging a Music Card at the in-game Music Shop.\u003c/p\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eYoidore Shirazu\u003c/strong\u003e: sung by MEIKO, written and composed by Kanaria, released September 5\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eRomeo and Cinderella\u003c/strong\u003e: sung by Hinomori Shizuku (CV Rina Honizumi), written and composed by doriko, released September 6\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eMosaic Roll (Reloaded)\u003c/strong\u003e: sung by Hoshino Ichika (CV Ruriko Noguchi), written and composed by DECO*27, released September 7\u003c/li\u003e\u003cli\u003e\u003cstrong\u003ePaIII.SENSATION\u003c/strong\u003e: sung by An Shiraishi (CV Jena Sumi), lyrics by Gyuniku and composition by Yūnosuke, released September 8\u003c/li\u003e\u003c/ul\u003e","blueskyPost":"MEIKO sings Kanaria's \"Yoidore Shirazu\" in a new full-size solo 2D MV, one of four Project Sekai character videos released on four straight days.","twitterPost":"Four Project Sekai solo 2D MVs in four days: MEIKO, Shizuku, Ichika and An each take a Vocaloid song, and all four unlock as rhythm tracks via Music Cards at the Music Shop.","threadsPost":null,"newsletterBlurb":"Project Sekai dropped four character solo 2D MVs on four consecutive days, pairing MEIKO, Hinomori Shizuku, Hoshino Ichika and An Shiraishi with songs by Kanaria, doriko, DECO*27 and Gyuniku. Each video is full-size, and each song is unlockable as a rhythm track with a Music Card.","attributionJson":"[{\"source\":\"4Gamer.net\",\"url\":\"https://www.4gamer.net/games/476/G047609/20260908043/\",\"title\":\"「プロセカ」，MEIKOが歌う「酔いどれ知らず」のキャラクターソロ2DMVが公開に\"},{\"source\":\"4Gamer.net\",\"url\":\"https://www.4gamer.net/games/476/G047609/20260908044/\",\"title\":\"「プロセカ」，楽曲「ロミオとシンデレラ」のキャラクターソロ2DMVが公開中\"},{\"source\":\"4Gamer.net\",\"url\":\"https://www.4gamer.net/games/476/G047609/20260908045/\",\"title\":\"「プロセカ」，モザイクロール（Reloaded）のキャラクターソロ2DMVを公開\"},{\"source\":\"4Gamer.net\",\"url\":\"https://www.4gamer.net/games/476/G047609/20260908046/\",\"title\":\"Project Sekai Releases Solo 2D MV of \\\"PaIII.SENSATION\\\" Sung by An Shiraishi\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":7058,"outputTokens":4724,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1788875983,"createdAt":"2026-09-08T13:56:08.000Z","publishedAt":"2026-09-08T13:58:20.000Z","updatedAt":"2026-09-08T13:58:20.000Z"},"cluster":{"id":"c_f5594bd497a949c5e9c6e311","canonicalTitle":"「プロセカ」，MEIKOが歌う「酔いどれ知らず」のキャラクターソロ2DMVが公開に","representativeArticleId":"a_9a860ee5028500efec0d32ad","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":false,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[\"Project Sekai: Colorful Stage! feat. Hatsune Miku\"],\"studios\":[\"Sega\"],\"people\":[],\"type\":\"release\",\"domain\":\"games\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-09-08T09:55:46.000Z","lastSeenAt":"2026-09-08T10:19:31.000Z","updatedAt":"2026-09-08T13:58:20.000Z"},"attribution":[{"source":"4Gamer.net","url":"https://www.4gamer.net/games/476/G047609/20260908046/","title":"「プロセカ」，白石杏が歌う「PaIII.SENSATION」のソロ2DMVが公開に"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":["Project Sekai: Colorful Stage! feat. Hatsune Miku"],"studios":["Sega"],"people":[],"type":"release","domain":"games","is_roundup":false},"keyFacts":["Sega and Colorful Palette released four character solo 2D MVs on the official Project Sekai YouTube channel between September 5 and 8, 2026.","MEIKO sings \"Yoidore Shirazu\" by Kanaria in the September 5 video.","Hinomori Shizuku (CV Rina Honizumi) sings \"Romeo and Cinderella\" by doriko in the September 6 video.","Hoshino Ichika (CV Ruriko Noguchi) sings \"Mosaic Roll (Reloaded)\" by DECO*27 in the September 7 video.","An Shiraishi (CV Jena Sumi) sings \"PaIII.SENSATION\" in the September 8 video."]}