Koyoriinium Visual Novel Site Opens, Starring Koyori Hakui
The novel game's official website has launched, with the VTuber credited as both star and supervisor.
The official website for the novel game Koyoriinium opened on October 22, 2026, according to 4gamer.net. The title stars and is supervised by Koyori Hakui.
According to the site, the story follows a protagonist who joins the Future Science Club in the role of “Assistant-kun.”
Koyoriinium is listed as a novel game. Entergram and COVER are attached to the project.
Quick answers
Who stars in Koyoriinium?
Koyori Hakui stars in the game and also supervises it.
What is the player's role in Koyoriinium?
The protagonist joins the Future Science Club as “Assistant-kun.”