Nijisanji launches ARG collaboration with Daiyonkyokai

ANYCOLOR Inc., the operator of the VTuber group Nijisanji, has launched the first installment of its collaboration with the creator group Daiyonkyokai titled ‘PARALLEL CASE: 2434’. The first chapter, ‘CASE 01: Mashiro Meme’s Records’, became available for investigation on August 21, 2026.

The project is an Alternate Reality Game (ARG) designed to blur the lines between reality and the virtual world. Participants interact with the story through a fictional social media platform called ‘D4-Bird’, where real-world websites and physical items are used to immerse players in the narrative.

Alongside the content release, merchandise featuring Nijisanji talents Mashiro Meme, Kurusu Natsume, and Sister Claire is now available for purchase. The collection includes exploration sets, clear files, acrylic panels, and a specialized ‘Mashiro Meme Ruin Exploration Pouch’. ANYCOLOR CEO Riku Takado is also scheduled to release a play report regarding the experience via ANYCOLOR MAGAZINE.