{"rewrite":{"id":"r_f7257283f97ba3689c0c7e3f","clusterId":"c_aef196867034c53cb97aa750","slug":"nijisanji-and-magniflex-extend-collab-with-rou-koyanagi-sleep-stream","model":"deepseek-v4-flash:free","headline":"Nijisanji and Magniflex Extend Collab With Rou Koyanagi Sleep Stream","summary":"The Nijisanji and Magniflex collaboration reaches its fourth edition with a new distribution on August 19. Rou Koyanagi joins the series, hosting a stream on his YouTube channel where he will report on his experience at the Omotesando showroom and discuss his ideal sleep environment. Ittetsu Saeki, a recurring presence in the collaboration, also appears.","whyItMatters":"The fourth edition brings a new personality into the brand campaign, with Rou Koyanagi's showroom experience and home use forming the basis of the stream's content alongside returning collaborator Ittetsu Saeki.","webCardHtml":"\u003cp\u003eThe fourth installment of the Nijisanji and Magniflex collaboration shifts to Rou Koyanagi\u0026#39;s YouTube channel for its August 19 broadcast. The stream is framed as a \u0026#34;Mattress Bond-Building Buddy Novel SLG\u0026#34; and includes Koyanagi\u0026#39;s report from the Omotesando showroom, a segment titled \u0026#34;Let\u0026#39;s decide black or white! Invitation to peaceful sleep ~BLACK OR WHITE? 2nd season~,\u0026#34; and \u0026#34;Oklahoma Chronicle ~Black partner and ultimate sleep~.\u0026#34;\u003c/p\u003e\u003cp\u003eKoyanagi selected products at the showroom and tested them at home before the broadcast. Ittetsu Saeki, who has appeared in every edition of the collaboration since it began in March 2025, joins him. The series has previously featured Mana Hibachi and Sei Kaisei alongside Saeki in conveying the importance of healthy sleep.\u003c/p\u003e","blueskyPost":"Nijisanji and Magniflex's fourth collab stream airs Aug 19 on Rou Koyanagi's channel. Koyanagi reports from the Omotesando showroom and his home sleep setup, with Ittetsu Saeki joining as the series' returning face.","twitterPost":"The Nijisanji x Magniflex collab hits its 4th edition. Rou Koyanagi hosts Aug 19, covering his showroom picks and home sleep setup, with Ittetsu Saeki back as the self-proclaimed Magniflex Advisor.","threadsPost":null,"newsletterBlurb":"Nijisanji and Magniflex are back for a fourth collaboration stream. Rou Koyanagi takes the hosting role on August 19, reporting on his showroom selections and home sleep environment, with Ittetsu Saeki returning as the series' recurring collaborator.","attributionJson":"[{\"source\":\"PANORA\",\"url\":\"https://panora.tokyo/archives/153159\",\"title\":\"Nijisanji x Magniflex Collaboration 4th Edition: \\\"Mattress Bond-Building Buddy Novel SLG\\\" with Rou Koyanagi and Ittetsu Saeki to Air on 8/19\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":4718,"outputTokens":652,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1787067336,"createdAt":"2026-08-18T15:31:37.000Z","publishedAt":"2026-08-18T15:31:44.000Z","updatedAt":"2026-08-18T15:31:37.000Z"},"cluster":{"id":"c_aef196867034c53cb97aa750","canonicalTitle":"にじさんじ×マニフレックス コラボ第4弾　小柳ロウ、佐伯イッテツによる「マットレス絆育成バディノベルSLG」が8/19配信決定","representativeArticleId":"a_665a28c8b61e3975a21cc1a2","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[\"マットレス絆育成バディノベルSLG\"],\"studios\":[],\"people\":[\"小柳ロウ\",\"佐伯イッテツ\"],\"type\":\"announcement\",\"domain\":\"vtuber\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-08-18T03:07:44.000Z","lastSeenAt":"2026-08-18T03:07:44.000Z","updatedAt":"2026-08-18T15:31:45.000Z"},"attribution":[{"source":"PANORA","url":"https://panora.tokyo/archives/153159","title":"にじさんじ×マニフレックス コラボ第4弾　小柳ロウ、佐伯イッテツによる「マットレス絆育成バディノベルSLG」が8/19配信決定"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":["マットレス絆育成バディノベルSLG"],"studios":[],"people":["小柳ロウ","佐伯イッテツ"],"type":"announcement","domain":"vtuber","is_roundup":false},"keyFacts":null}