{"rewrite":{"id":"r_2906ffc04deb2020038a34c6","clusterId":"c_2e20baf52e6f23c5e6776238","slug":"project-sekai-adds-syudou-written-song-anti-sainou","model":"deepseek-v4-flash","headline":"Project Sekai Adds syudou-Written Song Anti-Sainou","summary":"Sega and Colorful Palette added syudou's newly written song 'Anti-Sainou' to Project Sekai Colorful Stage! feat. Hatsune Miku on August 27, 2026. The track is performed by MEIKO, Airi Momoi, Akito Shinonome, Nene Kusanagi, and Ena Shinonome. Players can receive it from the in-game Gift, and a 2D MV is on YouTube.","whyItMatters":"The addition pairs a songwriter known for darker vocaloid-adjacent material with a five-member cast spanning multiple Project Sekai units, a crossover the game's event structure does not usually produce.","webCardHtml":"\u003cp\u003eThe new track arrives as a gift item rather than a purchasable song, which means every player can add it without spending in-game currency. The vocal lineup draws from three different groups: Airi from MORE MORE JUMP!, Akito and Ena from Vivid BAD SQUAD, and Nene from Wonderlands x Showtime, with MEIKO as the Virtual Singer.\u003c/p\u003e\u003cp\u003esyudou wrote both lyrics and composition. The 2D MV went up on the official Project Sekai YouTube channel the same day the song entered the rhythm game.\u003c/p\u003e","blueskyPost":"Project Sekai added syudou's 'Anti-Sainou' on August 27. MEIKO, Airi, Akito, Nene, and Ena perform it. Free via in-game Gift, and the 2D MV is on YouTube.","twitterPost":"syudou's 'Anti-Sainou' is now in Project Sekai. It is a gift song featuring MEIKO, Airi, Akito, Nene, and Ena. The 2D MV is up on the official YouTube channel.","threadsPost":null,"newsletterBlurb":"Project Sekai picked up a new syudou-written track called 'Anti-Sainou,' performed by a five-member cast led by MEIKO. It is available as a free gift in-game, and the 2D MV is streaming on YouTube.","attributionJson":"[{\"source\":\"4Gamer.net\",\"url\":\"https://www.4gamer.net/games/476/G047609/20260828029/\",\"title\":\"'Project Sekai' Adds syudou-Written Song 'Anti-Sainou'\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":4305,"outputTokens":561,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1787934596,"createdAt":"2026-08-28T16:19:12.000Z","publishedAt":"2026-08-28T16:21:45.000Z","updatedAt":"2026-08-28T16:19:12.000Z"},"cluster":{"id":"c_2e20baf52e6f23c5e6776238","canonicalTitle":"「プロセカ」，syudouさん書き下ろし楽曲「アンチサイノウ」を実装","representativeArticleId":"a_1ff5f7392162fdca0e7d72c0","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[\"Project Sekai: Colorful Stage! feat. Hatsune Miku\"],\"studios\":[\"Sega\"],\"people\":[\"syudou\"],\"type\":\"announcement\",\"domain\":\"games\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-08-28T05:46:10.000Z","lastSeenAt":"2026-08-28T05:46:10.000Z","updatedAt":"2026-08-28T16:21:46.000Z"},"attribution":[{"source":"4Gamer.net","url":"https://www.4gamer.net/games/476/G047609/20260828029/","title":"「プロセカ」，syudouさん書き下ろし楽曲「アンチサイノウ」を実装"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":["Project Sekai: Colorful Stage! feat. Hatsune Miku"],"studios":["Sega"],"people":["syudou"],"type":"announcement","domain":"games","is_roundup":false},"keyFacts":null}