Hakui Koyori is attached to three separate projects across games and streaming: she stars in and supervises the Entergram visual novel KOYO -RE- NIUM, appears in the Holo Dungeon update, and is set to appear on Denonbu Shiro's 9th anniversary stream. The visual novel's official website opens October 22 with no further details announced.
The most recent story about Hakui Koyori is also the one that gives her the widest role. On September 17, Entergram opened a teaser website for the visual novel KOYO -RE- NIUM, which stars Hakui and lists her as supervisor as well as cast. The official website opens October 22. Entergram also released a key visual of Hakui in a game-original school uniform. The game is Entergram's fourth collaboration with hololive, and no other details were announced.
That came about three months after the Holo Dungeon update announced on June 24 for Holo Dungeon: Hakui Koyori and Hollow Live in Hongsha Tower, which released on June 25, 2026. That update adds three dungeons, among them the turn-limited, item-restricted Sakura Shrine's Mugen Cave, a Chemical Launcher System, six new Hollows, an Enemy Info feature, and English language support. The game is developed by VELUX STUDIO, entered Early Access on Steam on January 30, 2026, and is sold under the holo Indie fan game brand. The update brings the total dungeon count to 10.
A day before that announcement, Denonbu Shiro was set to host a 9th anniversary stream on June 28 with Kizuna AI, Hololive's Tokino Sora and Hakui Koyori, and independent VTuber Fuji Aoi. The stream, titled "Legend Emergency Summon! Future Summit," was to discuss the future of VTubing as the scene approaches its 10-year milestone. Across the three stories, Hakui's role changes from cast member on a stream, to named character content in a fan game, to star and supervisor of a publisher-backed visual novel.
Synthesized by Yomimono from the cited Yomimono stories below, each itself sourced, then editorially reviewed. Every fact links the story it came from.
Structured graph also available as JSON at /public/entities/hakui-koyori.
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Entergram opened a teaser website on September 17 for the visual novel KOYO -RE- NIUM, starring hololive VTuber Hakui Koyori, who also supervises the game. No other details were announced, and the official website opens October 22. Entergram also revealed a key visual of Hakui in a game-original school uniform. The game is Entergram's fourth collaboration with hololive.
CCMC Corp. announced a major update for the roguelike game Holo Dungeon: Hakui Koyori and Hollow Live in Hongsha Tower, releasing on June 25, 2026. The update adds three new dungeons, including the highest-difficulty Sakura Shrine's Mugen Cave, which introduces a turn limit and bans brought-in items. A new Chemical Launcher System extends the Decorate System to ranged attacks. Six new Hollows based on Hololive talents Koseki Bijou, Shishiro Botan, Momosuzu Nene, Fuwawa Abyssgard, Mococo Abyssgard, and Kobo Kanaeru join the enemy roster, each with unique special skills. An Enemy Info feature lets players view Hollow abilities in-game. English language support, requested by many players, is also implemented. Other additions include new armor and accessories, arranged dungeon theme songs, line-of-sight display on the map, and various balance adjustments. The game, developed by VELUX STUDIO, entered Early Access on Steam on January 30, 2026, and is sold under the holo Indie fan game brand. The update brings the total dungeon count to 10.
Denonbu Shiro will hold a 9th anniversary stream on June 28 featuring Kizuna AI, Hololive's Tokino Sora and Hakui Koyori, and independent VTuber Fuji Aoi. The stream, titled "Legend Emergency Summon! Future Summit," will discuss the future of VTubing as the scene approaches its 10-year milestone.