Haruko Ichikawa, the creator of the acclaimed series Land of the Lustrous, is returning to Kodansha's Afternoon magazine with a new project. Titled Cosmic Mimimi, the series is billed as a "neo kawaii sci-fi" story following a character named Mimimi who lives in a city characterized as "cool" and "dreaming." According to the December issue of Afternoon, the manga is scheduled to launch in the magazine's next issue on November 25. This new project follows the conclusion of Ichikawa's long-running series Land of the Lustrous, which began in 2012 and ended in April 2024. The final compiled volume was released in November 2024. In its final years, the series received significant critical recognition, including the grand prize at the 45th Nihon SF Taishō Awards in 2025 and the top prize at the Sense of Gender Awards in August 2025.