{"rewrite":{"id":"r_d87723c9af1a8f2658d32b08","clusterId":"c_ce70d0788c5864d286a0c2d2","slug":"ultralmtm-reveals-six-first-generation-vtuber-debuts-for-october","model":"deepseek-v4-1-flash","headline":"k4sen-Produced VTuber Brand UltraLMTM Names Six First-Generation Members","summary":"GANYMEDE Inc. announced on September 28, 2026 that six creators will debut under UltraLMTM, the VTuber brand produced by streamer k4sen, who belongs to the CREATOR division of the esports team ZETA DIVISION. The six are Riina Koga Fluorite, Amari Mahiru, Yuime Yuina, Hanasake Sei, Washimi Daisho, and Yayoi Chiu. First streams run over two days at 19:00 each day: three members on Monday, October 5 and three on Tuesday, October 6, each on their own YouTube channel. From 20:30 each day, the three who streamed plus k4sen appear on a program on the UltraLMTM official channel. Profiles, visuals, a trailer, and X accounts for all six launched with the announcement. The brand's stated concept is \"Beyond imagination, ideals squared.\"","whyItMatters":"UltraLMTM's Patch-style operation, borrowed from online game updates rather than talent-agency calendars, is the structural feature that separates this debut from a standard VTuber generation rollout.","webCardHtml":"\u003cp\u003eThe announcement program \u0026#34;LMTiMes!\u0026#34; carried the reveal, and the brand\u0026#39;s backstory casts k4sen as captain of the cyber exploration ship LMTM, which left Earth for the virtual world. The six members are described as the creators he found over a year of exploration, with profiles spanning games, singing, and dancing.\u003c/p\u003e\n\u003cp\u003eUltraLMTM runs on Patch-style operation, borrowed from online game updates rather than a talent-agency calendar. Two patch scales exist: minor 0.1-step changes such as 1.0 to 1.1, and major jumps such as Patch 1.0 to Patch 2.0. When a patch is large, the brand says it will disclose details in advance, and the debut itself is Patch 1.0, titled \u0026#34;THE LMTM AWAKENS.\u0026#34; Its theme, \u0026#34;Awakening,\u0026#34; covers the first streams plus talk projects with k4sen and game collaborations. Before that, the pre-debut stage was Patch 0.1.\u003c/p\u003e\n\u003cp\u003eThe project was first announced at Tokyo Game Show 2025. Auditions asked only that applicants be 18 or older and live in Japan, with no requirements on gender, streaming experience, or game skill, and member count stayed hidden until TGS2026, where k4sen spoke about the theme, the debut dates, and the members. It is not stated what genre each member will stream.\u003c/p\u003e","blueskyPost":"UltraLMTM runs on patch notes. The brand's Patch 1.0, \"THE LMTM AWAKENS,\" covers the October 5 and 6 debut streams, k4sen talk projects, and game collaborations.","twitterPost":"Six members, three per night: Riina Koga Fluorite, Amari Mahiru, Yuime Yuina, Hanasake Sei, Washimi Daisho, and Yayoi Chiu debut October 5 and 6 at 19:00.","threadsPost":"UltraLMTM is splitting its six debuts across October 5 and October 6, so the second group starts a day behind on the audience the first three build. GANYMEDE, the company behind ZETA DIVISION, is producing the group k4sen fronts.","newsletterBlurb":"k4sen's VTuber brand UltraLMTM has named its six first-generation members after a selection process that drew applicants 18 and older from across Japan. The debuts run October 5 and 6, three members per night, followed by a joint program with k4sen. The brand operates on Patch-style updates rather than a fixed schedule.","attributionJson":"[{\"source\":\"KAI-YOU\",\"url\":\"https://kai-you.net/article/96688\",\"title\":\"Details Revealed for 1st Generation of k4sen-Produced VTuber Group \\\"UltraLMTM\\\"\"},{\"source\":\"Inside\",\"url\":\"https://www.inside-games.jp/article/2026/09/27/188335.html\",\"title\":\"Streamer k4sen-produced VTuber group \\\"UltraLMTM\\\" finally debuts! A recap of the TGS2026 announcement - official program also set for September 28 at 19:00\"},{\"source\":\"MoguLive\",\"url\":\"https://www.moguravr.com/k4sen-ultralmtm/\",\"title\":\"k4sen-Produced VTuber Brand \\\"UltraLMTM\\\" Debuts 6 Members\"},{\"source\":\"PANORA\",\"url\":\"https://panora.tokyo/archives/158232\",\"title\":\"Six to Debut from k4sen-Produced VTuber Brand \\\"UltraLMTM\\\" - Visuals and Profiles Released\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":13671,"outputTokens":1463,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1790609362,"createdAt":"2026-09-28T15:23:33.000Z","publishedAt":"2026-09-28T15:28:20.000Z","updatedAt":"2026-10-03T15:10:21.000Z"},"cluster":{"id":"c_ce70d0788c5864d286a0c2d2","canonicalTitle":"k4senがプロデュースするVTuberグループ「UltraLMTM」1期生の詳細が解禁","representativeArticleId":"a_85b2768b73557c83f70ce506","sourceCount":4,"writtenSourceCount":4,"writeAttempts":0,"isSolo":false,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[\"UltraLMTM\"],\"studios\":[\"GANYMEDE\",\"ZETA DIVISION\"],\"people\":[\"k4sen\",\"Riina Koga Fluorite\",\"Amari Mahiru\",\"Yume Yuina\",\"Hanasake Sei\",\"Washimi Daisho\",\"Yayoi Chiu\"],\"type\":\"announcement\",\"domain\":\"vtuber\",\"is_roundup\":false}","contentType":"news","status":"written","firstSeenAt":"2026-09-28T11:19:00.000Z","lastSeenAt":"2026-09-29T02:00:00.000Z","updatedAt":"2026-10-03T15:10:21.000Z"},"attribution":[{"source":"KAI-YOU","url":"https://kai-you.net/article/96688","title":"k4senがプロデュースするVTuberグループ「UltraLMTM」1期生の詳細が解禁"},{"source":"MoguLive","url":"https://www.moguravr.com/k4sen-ultralmtm/","title":"k4senプロデュースのVTuberブランド「UltraLMTM」、6名がデビュー"},{"source":"Inside","url":"https://www.inside-games.jp/article/2026/09/27/188335.html","title":"配信者・k4senプロデュースのVTuber「UltraLMTM（ウルトラリミテム）」がいよいよデビュー！TGS2026での発表を改めておさらいー9月28日19時には公式番組も"},{"source":"PANORA","url":"https://panora.tokyo/archives/158232","title":"k4senがプロデュースするVTuberブランド「UltraLMTM」から6名がデビュー　ビジュアル・プロフィールが公開"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":["UltraLMTM"],"studios":["GANYMEDE","ZETA DIVISION"],"people":["k4sen","Riina Koga Fluorite","Amari Mahiru","Yume Yuina","Hanasake Sei","Washimi Daisho","Yayoi Chiu"],"type":"announcement","domain":"vtuber","is_roundup":false},"keyFacts":["GANYMEDE Inc. announced the six first-generation UltraLMTM members on September 28, 2026.","Riina Koga Fluorite, Amari Mahiru, Yuime Yuina, Hanasake Sei, Washimi Daisho, and Yayoi Chiu are the six debuting members.","Three members hold their first streams on Monday, October 5 at 19:00, and the other three on Tuesday, October 6 at 19:00.","A program featuring the three debuting that day and k4sen streams at 20:30 on October 5 and October 6 on the UltraLMTM official YouTube channel.","UltraLMTM opened auditions to applicants 18 or older residing in Japan, with gender, streaming experience, and game skill not considered."],"pageLinks":{"healthSlugs":["ultralmtm","ganymede","zeta-division","k4sen","riina-koga-fluorite","amari-mahiru","yume-yuina","hanasake-sei","washimi-daisho","yayoi-chiu"],"storySlugs":[],"entities":[{"slug":"ultralmtm","supported":0,"disputed":0,"contradicted":0,"unverified":10,"overall":"unverified","story_count":3,"has_dossier":true},{"slug":"ganymede","supported":0,"disputed":0,"contradicted":0,"unverified":2,"overall":"unverified","story_count":3,"has_dossier":true},{"slug":"zeta-division","supported":0,"disputed":0,"contradicted":0,"unverified":5,"overall":"unverified","story_count":6,"has_dossier":true},{"slug":"k4sen","supported":1,"disputed":0,"contradicted":0,"unverified":7,"overall":"green","story_count":14,"has_dossier":true},{"slug":"riina-koga-fluorite","supported":0,"disputed":0,"contradicted":0,"unverified":0,"overall":"unverified","story_count":1,"has_dossier":false},{"slug":"amari-mahiru","supported":0,"disputed":0,"contradicted":0,"unverified":0,"overall":"unverified","story_count":1,"has_dossier":false},{"slug":"yume-yuina","supported":0,"disputed":0,"contradicted":0,"unverified":0,"overall":"unverified","story_count":1,"has_dossier":false},{"slug":"hanasake-sei","supported":0,"disputed":0,"contradicted":0,"unverified":0,"overall":"unverified","story_count":1,"has_dossier":false},{"slug":"washimi-daisho","supported":0,"disputed":0,"contradicted":0,"unverified":0,"overall":"unverified","story_count":1,"has_dossier":false},{"slug":"yayoi-chiu","supported":0,"disputed":0,"contradicted":0,"unverified":0,"overall":"unverified","story_count":1,"has_dossier":false}],"stories":[],"entitiesOk":true,"storiesOk":true}}