Koyori Hakui Stars In And Supervises Novel Game Koyorium
Entergram published a teaser site on September 17 for Koyorium, a novel game starring and supervised by hololive VTuber Koyori Hakui. Hakui is part of the hololive sixth-generation unit Secret Society holoX, where she appears as a researcher. The game is on display at the Entergram booth in Hall 3, stand 03-N05, at Tokyo Game Show 2026, which runs at Makuhari Messe from September 17 to 21. The booth shows a large key visual, a standee bearing a handwritten signature, and a message video from Hakui. Visitors who photograph the key visual or standee, post the image with the hashtag Koyorium, and show the screen to booth staff receive a key visual sticker while the daily supply lasts. Supported platforms, release date, price, and story details are unannounced. The teaser site is scheduled to open as the official site on October 22, with updates promised via Entergram's website and its official X account.