デモンズナイトフィーバー Ad Turns a Mischievous Cat Loose at Work

Arc System Works has published the “今日は大暴れするにゃん” web short commercial for デモンズナイトフィーバー. It features a cat said to evoke the game’s evil deity ギガスゴイデス, getting in the way of people at work and covering a suit in fur as part of its everyday mischief.

The publisher describes デモンズナイトフィーバー as a simulation RPG, promoting its character-development premise with the line that the more often characters die, the stronger they become. The game is scheduled to launch on October 22, 2026. The announcement links to storefront pages for Steam, PlayStation Store, and Nintendo Switch.

The clip is part of a six-video campaign that the publisher says will roll out ahead of launch. Another short, “スーツが毛だらけ,” also uses a cat disrupting work and leaving a suit covered in fur as its comic premise, giving the campaign a recurring focus on feline troublemaking.