GOUACHE performs "Red," the opening theme for the film Kagerou Daze: In a Day's. The music video was posted on IA Project's official YouTube channel on November 3, 2016, a day before the film came out, and it ends with a promotion for the movie. Most of the video blends footage from across the entire franchise, giving viewers a quick refresher ahead of the release. The video was also included on the film's DVD and Blu-ray, where the closing promotion is removed.